diff options
Diffstat (limited to 'render/html_interaction.c')
| -rw-r--r-- | render/html_interaction.c | 1434 |
1 files changed, 0 insertions, 1434 deletions
diff --git a/render/html_interaction.c b/render/html_interaction.c deleted file mode 100644 index 2d14ed2ae..000000000 --- a/render/html_interaction.c +++ /dev/null @@ -1,1434 +0,0 @@ -/* - * Copyright 2006 James Bursa <bursa@users.sourceforge.net> - * Copyright 2006 Richard Wilson <info@tinct.net> - * Copyright 2008 Michael Drake <tlsa@netsurf-browser.org> - * Copyright 2009 Paul Blokus <paul_pl@users.sourceforge.net> - * - * This file is part of NetSurf, http://www.netsurf-browser.org/ - * - * NetSurf is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * NetSurf is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -/** - * \file - * User interaction with a CONTENT_HTML (implementation). - */ - -#include <assert.h> -#include <stdbool.h> - -#include <dom/dom.h> - -#include "utils/corestrings.h" -#include "utils/messages.h" -#include "utils/utils.h" -#include "utils/log.h" -#include "utils/nsoption.h" -#include "netsurf/content.h" -#include "netsurf/browser_window.h" -#include "netsurf/mouse.h" -#include "netsurf/misc.h" -#include "netsurf/layout.h" -#include "netsurf/keypress.h" -#include "content/hlcache.h" -#include "desktop/frames.h" -#include "desktop/scrollbar.h" -#include "desktop/selection.h" -#include "desktop/textarea.h" -#include "javascript/js.h" -#include "desktop/gui_internal.h" - -#include "render/box.h" -#include "render/box_textarea.h" -#include "render/font.h" -#include "render/form_internal.h" -#include "render/html_internal.h" -#include "render/imagemap.h" -#include "render/search.h" - -/** - * Get pointer shape for given box - * - * \param box box in question - * \param imagemap whether an imagemap applies to the box - */ - -static browser_pointer_shape get_pointer_shape(struct box *box, bool imagemap) -{ - browser_pointer_shape pointer; - css_computed_style *style; - enum css_cursor_e cursor; - lwc_string **cursor_uris; - - if (box->type == BOX_FLOAT_LEFT || box->type == BOX_FLOAT_RIGHT) - style = box->children->style; - else - style = box->style; - - if (style == NULL) - return BROWSER_POINTER_DEFAULT; - - cursor = css_computed_cursor(style, &cursor_uris); - - switch (cursor) { - case CSS_CURSOR_AUTO: - if (box->href || (box->gadget && - (box->gadget->type == GADGET_IMAGE || - box->gadget->type == GADGET_SUBMIT)) || - imagemap) { - /* link */ - pointer = BROWSER_POINTER_POINT; - } else if (box->gadget && - (box->gadget->type == GADGET_TEXTBOX || - box->gadget->type == GADGET_PASSWORD || - box->gadget->type == GADGET_TEXTAREA)) { - /* text input */ - pointer = BROWSER_POINTER_CARET; - } else { - /* html content doesn't mind */ - pointer = BROWSER_POINTER_AUTO; - } - break; - case CSS_CURSOR_CROSSHAIR: - pointer = BROWSER_POINTER_CROSS; - break; - case CSS_CURSOR_POINTER: - pointer = BROWSER_POINTER_POINT; - break; - case CSS_CURSOR_MOVE: - pointer = BROWSER_POINTER_MOVE; - break; - case CSS_CURSOR_E_RESIZE: - pointer = BROWSER_POINTER_RIGHT; - break; - case CSS_CURSOR_W_RESIZE: - pointer = BROWSER_POINTER_LEFT; - break; - case CSS_CURSOR_N_RESIZE: - pointer = BROWSER_POINTER_UP; - break; - case CSS_CURSOR_S_RESIZE: - pointer = BROWSER_POINTER_DOWN; - break; - case CSS_CURSOR_NE_RESIZE: - pointer = BROWSER_POINTER_RU; - break; - case CSS_CURSOR_SW_RESIZE: - pointer = BROWSER_POINTER_LD; - break; - case CSS_CURSOR_SE_RESIZE: - pointer = BROWSER_POINTER_RD; - break; - case CSS_CURSOR_NW_RESIZE: - pointer = BROWSER_POINTER_LU; - break; - case CSS_CURSOR_TEXT: - pointer = BROWSER_POINTER_CARET; - break; - case CSS_CURSOR_WAIT: - pointer = BROWSER_POINTER_WAIT; - break; - case CSS_CURSOR_PROGRESS: - pointer = BROWSER_POINTER_PROGRESS; - break; - case CSS_CURSOR_HELP: - pointer = BROWSER_POINTER_HELP; - break; - default: - pointer = BROWSER_POINTER_DEFAULT; - break; - } - - return pointer; -} - - -/** - * Start drag scrolling the contents of a box - * - * \param box the box to be scrolled - * \param x x ordinate of initial mouse position - * \param y y ordinate - */ - -static void html_box_drag_start(struct box *box, int x, int y) -{ - int box_x, box_y; - int scroll_mouse_x, scroll_mouse_y; - - box_coords(box, &box_x, &box_y); - - if (box->scroll_x != NULL) { - scroll_mouse_x = x - box_x ; - scroll_mouse_y = y - (box_y + box->padding[TOP] + - box->height + box->padding[BOTTOM] - - SCROLLBAR_WIDTH); - scrollbar_start_content_drag(box->scroll_x, - scroll_mouse_x, scroll_mouse_y); - } else if (box->scroll_y != NULL) { - scroll_mouse_x = x - (box_x + box->padding[LEFT] + - box->width + box->padding[RIGHT] - - SCROLLBAR_WIDTH); - scroll_mouse_y = y - box_y; - - scrollbar_start_content_drag(box->scroll_y, - scroll_mouse_x, scroll_mouse_y); - } -} - - -/** - * End overflow scroll scrollbar drags - * - * \param html html content - * \param mouse state of mouse buttons and modifier keys - * \param x coordinate of mouse - * \param y coordinate of mouse - * \param dir Direction of drag - */ -static size_t html_selection_drag_end(struct html_content *html, - browser_mouse_state mouse, int x, int y, int dir) -{ - int pixel_offset; - struct box *box; - int dx, dy; - size_t idx = 0; - - box = box_pick_text_box(html, x, y, dir, &dx, &dy); - if (box) { - plot_font_style_t fstyle; - - font_plot_style_from_css(&html->len_ctx, box->style, &fstyle); - - guit->layout->position(&fstyle, box->text, box->length, - dx, &idx, &pixel_offset); - - idx += box->byte_offset; - } - - return idx; -} - - -/** - * Handle mouse tracking (including drags) in an HTML content window. - * - * \param c content of type html - * \param bw browser window - * \param mouse state of mouse buttons and modifier keys - * \param x coordinate of mouse - * \param y coordinate of mouse - */ - -void html_mouse_track(struct content *c, struct browser_window *bw, - browser_mouse_state mouse, int x, int y) -{ - html_mouse_action(c, bw, mouse, x, y); -} - -/** - * Helper for file gadgets to store their filename. - * - * Stores the filename unencoded on the dom node associated with the - * gadget. - * - * \todo Get rid of this crap eventually - * - * \param operation DOM operation - * \param key DOM node key being considerd - * \param _data The data assocated with the key - * \param src The source DOM node. - * \param dst The destination DOM node. - */ -static void -html__image_coords_dom_user_data_handler(dom_node_operation operation, - dom_string *key, - void *_data, - struct dom_node *src, - struct dom_node *dst) -{ - struct image_input_coords *oldcoords, *coords = _data, *newcoords; - - if (!dom_string_isequal(corestring_dom___ns_key_image_coords_node_data, - key) || coords == NULL) { - return; - } - - switch (operation) { - case DOM_NODE_CLONED: - newcoords = calloc(1, sizeof(*newcoords)); - if (newcoords != NULL) { - *newcoords = *coords; - if (dom_node_set_user_data(dst, - corestring_dom___ns_key_image_coords_node_data, - newcoords, - html__image_coords_dom_user_data_handler, - &oldcoords) == DOM_NO_ERR) { - free(oldcoords); - } - } - break; - - case DOM_NODE_DELETED: - free(coords); - break; - - case DOM_NODE_RENAMED: - case DOM_NODE_IMPORTED: - case DOM_NODE_ADOPTED: - break; - - default: - NSLOG(netsurf, INFO, "User data operation not handled."); - assert(0); - } -} - -/** - * Handle mouse clicks and movements in an HTML content window. - * - * \param c content of type html - * \param bw browser window - * \param mouse state of mouse buttons and modifier keys - * \param x coordinate of mouse - * \param y coordinate of mouse - * - * This function handles both hovering and clicking. It is important that the - * code path is identical (except that hovering doesn't carry out the action), - * so that the status bar reflects exactly what will happen. Having separate - * code paths opens the possibility that an attacker will make the status bar - * show some harmless action where clicking will be harmful. - */ - -void html_mouse_action(struct content *c, struct browser_window *bw, - browser_mouse_state mouse, int x, int y) -{ - html_content *html = (html_content *) c; - enum { ACTION_NONE, ACTION_SUBMIT, ACTION_GO } action = ACTION_NONE; - const char *title = 0; - nsurl *url = 0; - char *url_s = NULL; - size_t url_l = 0; - const char *target = 0; - char status_buffer[200]; - const char *status = 0; - browser_pointer_shape pointer = BROWSER_POINTER_DEFAULT; - bool imagemap = false; - int box_x = 0, box_y = 0; - int gadget_box_x = 0, gadget_box_y = 0; - int html_object_pos_x = 0, html_object_pos_y = 0; - int text_box_x = 0; - struct box *url_box = 0; - struct box *gadget_box = 0; - struct box *text_box = 0; - struct box *box; - struct form_control *gadget = 0; - hlcache_handle *object = NULL; - struct box *html_object_box = NULL; - struct browser_window *iframe = NULL; - struct box *drag_candidate = NULL; - struct scrollbar *scrollbar = NULL; - plot_font_style_t fstyle; - int scroll_mouse_x = 0, scroll_mouse_y = 0; - int padding_left, padding_right, padding_top, padding_bottom; - browser_drag_type drag_type = browser_window_get_drag_type(bw); - union content_msg_data msg_data; - struct dom_node *node = NULL; - union html_drag_owner drag_owner; - union html_selection_owner sel_owner; - bool click = mouse & (BROWSER_MOUSE_PRESS_1 | BROWSER_MOUSE_PRESS_2 | - BROWSER_MOUSE_CLICK_1 | BROWSER_MOUSE_CLICK_2 | - BROWSER_MOUSE_DRAG_1 | BROWSER_MOUSE_DRAG_2); - - if (drag_type != DRAGGING_NONE && !mouse && - html->visible_select_menu != NULL) { - /* drag end: select menu */ - form_select_mouse_drag_end(html->visible_select_menu, - mouse, x, y); - } - - if (html->visible_select_menu != NULL) { - box = html->visible_select_menu->box; - box_coords(box, &box_x, &box_y); - - box_x -= box->border[LEFT].width; - box_y += box->height + box->border[BOTTOM].width + - box->padding[BOTTOM] + box->padding[TOP]; - status = form_select_mouse_action(html->visible_select_menu, - mouse, x - box_x, y - box_y); - if (status != NULL) { - msg_data.explicit_status_text = status; - content_broadcast(c, CONTENT_MSG_STATUS, &msg_data); - } else { - int width, height; - form_select_get_dimensions(html->visible_select_menu, - &width, &height); - html->visible_select_menu = NULL; - browser_window_redraw_rect(bw, box_x, box_y, - width, height); - } - return; - } - - if (html->drag_type == HTML_DRAG_SELECTION) { - /* Selection drag */ - struct box *box; - int dir = -1; - int dx, dy; - - if (!mouse) { - /* End of selection drag */ - int dir = -1; - size_t idx; - - if (selection_dragging_start(&html->sel)) - dir = 1; - - idx = html_selection_drag_end(html, mouse, x, y, dir); - - if (idx != 0) - selection_track(&html->sel, mouse, idx); - - drag_owner.no_owner = true; - html_set_drag_type(html, HTML_DRAG_NONE, - drag_owner, NULL); - return; - } - - if (selection_dragging_start(&html->sel)) - dir = 1; - - box = box_pick_text_box(html, x, y, dir, &dx, &dy); - - if (box != NULL) { - int pixel_offset; - size_t idx; - plot_font_style_t fstyle; - - font_plot_style_from_css(&html->len_ctx, - box->style, &fstyle); - - guit->layout->position(&fstyle, - box->text, box->length, - dx, &idx, &pixel_offset); - - selection_track(&html->sel, mouse, - box->byte_offset + idx); - } - return; - } - - if (html->drag_type == HTML_DRAG_SCROLLBAR) { - struct scrollbar *scr = html->drag_owner.scrollbar; - struct html_scrollbar_data *data = scrollbar_get_data(scr); - - if (!mouse) { - /* drag end: scrollbar */ - html_overflow_scroll_drag_end(scr, mouse, x, y); - } - - box = data->box; - box_coords(box, &box_x, &box_y); - if (scrollbar_is_horizontal(scr)) { - scroll_mouse_x = x - box_x ; - scroll_mouse_y = y - (box_y + box->padding[TOP] + - box->height + box->padding[BOTTOM] - - SCROLLBAR_WIDTH); - status = scrollbar_mouse_status_to_message( - scrollbar_mouse_action(scr, mouse, - scroll_mouse_x, - scroll_mouse_y)); - } else { - scroll_mouse_x = x - (box_x + box->padding[LEFT] + - box->width + box->padding[RIGHT] - - SCROLLBAR_WIDTH); - scroll_mouse_y = y - box_y; - status = scrollbar_mouse_status_to_message( - scrollbar_mouse_action(scr, mouse, - scroll_mouse_x, - scroll_mouse_y)); - } - - msg_data.explicit_status_text = status; - content_broadcast(c, CONTENT_MSG_STATUS, &msg_data); - return; - } - - if (html->drag_type == HTML_DRAG_TEXTAREA_SELECTION || - html->drag_type == HTML_DRAG_TEXTAREA_SCROLLBAR) { - box = html->drag_owner.textarea; - assert(box->gadget != NULL); - assert(box->gadget->type == GADGET_TEXTAREA || - box->gadget->type == GADGET_PASSWORD || - box->gadget->type == GADGET_TEXTBOX); - - box_coords(box, &box_x, &box_y); - textarea_mouse_action(box->gadget->data.text.ta, mouse, - x - box_x, y - box_y); - - /* TODO: Set appropriate statusbar message */ - return; - } - - if (html->drag_type == HTML_DRAG_CONTENT_SELECTION || - html->drag_type == HTML_DRAG_CONTENT_SCROLL) { - box = html->drag_owner.content; - assert(box->object != NULL); - - box_coords(box, &box_x, &box_y); - content_mouse_track(box->object, bw, mouse, - x - box_x, y - box_y); - return; - } - - if (html->drag_type == HTML_DRAG_CONTENT_SELECTION) { - box = html->drag_owner.content; - assert(box->object != NULL); - - box_coords(box, &box_x, &box_y); - content_mouse_track(box->object, bw, mouse, - x - box_x, y - box_y); - return; - } - - /* Content related drags handled by now */ - assert(html->drag_type == HTML_DRAG_NONE); - - /* search the box tree for a link, imagemap, form control, or - * box with scrollbars - */ - - box = html->layout; - - /* Consider the margins of the html page now */ - box_x = box->margin[LEFT]; - box_y = box->margin[TOP]; - - /* descend through visible boxes setting more specific values for: - * box - deepest box at point - * html_object_box - html object - * html_object_pos_x - html object - * html_object_pos_y - html object - * object - non html object - * iframe - iframe - * url - href or imagemap - * target - href or imagemap or gadget - * url_box - href or imagemap - * imagemap - imagemap - * gadget - gadget - * gadget_box - gadget - * gadget_box_x - gadget - * gadget_box_y - gadget - * title - title - * pointer - * - * drag_candidate - first box with scroll - * padding_left - box with scroll - * padding_right - * padding_top - * padding_bottom - * scrollbar - inside padding box stops decent - * scroll_mouse_x - inside padding box stops decent - * scroll_mouse_y - inside padding box stops decent - * - * text_box - text box - * text_box_x - text_box - */ - do { - if ((box->style != NULL) && - (css_computed_visibility(box->style) == - CSS_VISIBILITY_HIDDEN)) { - continue; - } - - if (box->node != NULL) { - node = box->node; - } - - if (box->object) { - if (content_get_type(box->object) == CONTENT_HTML) { - html_object_box = box; - html_object_pos_x = box_x; - html_object_pos_y = box_y; - } else { - object = box->object; - } - } - - if (box->iframe) { - iframe = box->iframe; - } - - if (box->href) { - url = box->href; - target = box->target; - url_box = box; - } - - if (box->usemap) { - url = imagemap_get(html, box->usemap, - box_x, box_y, x, y, &target); - if (url) { - imagemap = true; - url_box = box; - } - } - - if (box->gadget) { - gadget = box->gadget; - gadget_box = box; - gadget_box_x = box_x; - gadget_box_y = box_y; - if (gadget->form) - target = gadget->form->target; - } - - if (box->title) { - title = box->title; - } - - pointer = get_pointer_shape(box, false); - - if ((box->scroll_x != NULL) || - (box->scroll_y != NULL)) { - - if (drag_candidate == NULL) { - drag_candidate = box; - } - - padding_left = box_x + - scrollbar_get_offset(box->scroll_x); - padding_right = padding_left + box->padding[LEFT] + - box->width + box->padding[RIGHT]; - padding_top = box_y + - scrollbar_get_offset(box->scroll_y); - padding_bottom = padding_top + box->padding[TOP] + - box->height + box->padding[BOTTOM]; - - if ((x > padding_left) && - (x < padding_right) && - (y > padding_top) && - (y < padding_bottom)) { - /* mouse inside padding box */ - - if ((box->scroll_y != NULL) && - (x > (padding_right - - SCROLLBAR_WIDTH))) { - /* mouse above vertical box scroll */ - - scrollbar = box->scroll_y; - scroll_mouse_x = x - (padding_right - - SCROLLBAR_WIDTH); - scroll_mouse_y = y - padding_top; - break; - - } else if ((box->scroll_x != NULL) && - (y > (padding_bottom - - SCROLLBAR_WIDTH))) { - /* mouse above horizontal box scroll */ - - scrollbar = box->scroll_x; - scroll_mouse_x = x - padding_left; - scroll_mouse_y = y - (padding_bottom - - SCROLLBAR_WIDTH); - break; - } - } - } - - if (box->text && !box->object) { - text_box = box; - text_box_x = box_x; - } - } while ((box = box_at_point(&html->len_ctx, box, x, y, - &box_x, &box_y)) != NULL); - - /* use of box_x, box_y, or content below this point is probably a - * mistake; they will refer to the last box returned by box_at_point */ - assert(node != NULL); - - if (scrollbar) { - status = scrollbar_mouse_status_to_message( - scrollbar_mouse_action(scrollbar, mouse, - scroll_mouse_x, - scroll_mouse_y)); - pointer = BROWSER_POINTER_DEFAULT; - } else if (gadget) { - textarea_mouse_status ta_status; - - switch (gadget->type) { - case GADGET_SELECT: - status = messages_get("FormSelect"); - pointer = BROWSER_POINTER_MENU; - if (mouse & BROWSER_MOUSE_CLICK_1 && - nsoption_bool(core_select_menu)) { - html->visible_select_menu = gadget; - form_open_select_menu(c, gadget, - form_select_menu_callback, - c); - pointer = BROWSER_POINTER_DEFAULT; - } else if (mouse & BROWSER_MOUSE_CLICK_1) { - msg_data.select_menu.gadget = gadget; - content_broadcast(c, CONTENT_MSG_SELECTMENU, - &msg_data); - } - break; - case GADGET_CHECKBOX: - status = messages_get("FormCheckbox"); - if (mouse & BROWSER_MOUSE_CLICK_1) { - gadget->selected = !gadget->selected; - dom_html_input_element_set_checked( - (dom_html_input_element *)(gadget->node), - gadget->selected); - html__redraw_a_box(html, gadget_box); - } - break; - case GADGET_RADIO: - status = messages_get("FormRadio"); - if (mouse & BROWSER_MOUSE_CLICK_1) - form_radio_set(gadget); - break; - case GADGET_IMAGE: - /* This falls through to SUBMIT */ - if (mouse & BROWSER_MOUSE_CLICK_1) { - struct image_input_coords *coords, *oldcoords; - /** \todo Find a way to not ignore errors */ - coords = calloc(1, sizeof(*coords)); - if (coords == NULL) { - return; - } - coords->x = x - gadget_box_x; - coords->y = y - gadget_box_y; - if (dom_node_set_user_data( - gadget->node, - corestring_dom___ns_key_image_coords_node_data, - coords, html__image_coords_dom_user_data_handler, - &oldcoords) != DOM_NO_ERR) - return; - free(oldcoords); - } - /* Fall through */ - case GADGET_SUBMIT: - if (gadget->form) { - snprintf(status_buffer, sizeof status_buffer, - messages_get("FormSubmit"), - gadget->form->action); - status = status_buffer; - pointer = get_pointer_shape(gadget_box, false); - if (mouse & (BROWSER_MOUSE_CLICK_1 | - BROWSER_MOUSE_CLICK_2)) - action = ACTION_SUBMIT; - } else { - status = messages_get("FormBadSubmit"); - } - break; - case GADGET_TEXTBOX: - case GADGET_PASSWORD: - case GADGET_TEXTAREA: - if (gadget->type == GADGET_TEXTAREA) - status = messages_get("FormTextarea"); - else - status = messages_get("FormTextbox"); - - if (click && (html->selection_type != - HTML_SELECTION_TEXTAREA || - html->selection_owner.textarea != - gadget_box)) { - sel_owner.none = true; - html_set_selection(html, HTML_SELECTION_NONE, - sel_owner, true); - } - - ta_status = textarea_mouse_action(gadget->data.text.ta, - mouse, x - gadget_box_x, - y - gadget_box_y); - - if (ta_status & TEXTAREA_MOUSE_EDITOR) { - pointer = get_pointer_shape(gadget_box, false); - } else { - pointer = BROWSER_POINTER_DEFAULT; - status = scrollbar_mouse_status_to_message( - ta_status >> 3); - } - break; - case GADGET_HIDDEN: - /* not possible: no box generated */ - break; - case GADGET_RESET: - status = messages_get("FormReset"); - break; - case GADGET_FILE: - status = messages_get("FormFile"); - if (mouse & BROWSER_MOUSE_CLICK_1) { - msg_data.gadget_click.gadget = gadget; - content_broadcast(c, CONTENT_MSG_GADGETCLICK, - &msg_data); - } - break; - case GADGET_BUTTON: - /* This gadget cannot be activated */ - status = messages_get("FormButton"); - break; - } - - } else if (object && (mouse & BROWSER_MOUSE_MOD_2)) { - - if (mouse & BROWSER_MOUSE_DRAG_2) { - msg_data.dragsave.type = CONTENT_SAVE_NATIVE; - msg_data.dragsave.content = object; - content_broadcast(c, CONTENT_MSG_DRAGSAVE, &msg_data); - - } else if (mouse & BROWSER_MOUSE_DRAG_1) { - msg_data.dragsave.type = CONTENT_SAVE_ORIG; - msg_data.dragsave.content = object; - content_broadcast(c, CONTENT_MSG_DRAGSAVE, &msg_data); - } - - /* \todo should have a drag-saving object msg */ - - } else if (iframe) { - int pos_x, pos_y; - float scale = browser_window_get_scale(bw); - - browser_window_get_position(iframe, false, &pos_x, &pos_y); - - pos_x /= scale; - pos_y /= scale; - - if (mouse & BROWSER_MOUSE_CLICK_1 || - mouse & BROWSER_MOUSE_CLICK_2) { - browser_window_mouse_click(iframe, mouse, - x - pos_x, y - pos_y); - } else { - browser_window_mouse_track(iframe, mouse, - x - pos_x, y - pos_y); - } - } else if (html_object_box) { - - if (click && (html->selection_type != HTML_SELECTION_CONTENT || - html->selection_owner.content != - html_object_box)) { - sel_owner.none = true; - html_set_selection(html, HTML_SELECTION_NONE, - sel_owner, true); - } - if (mouse & BROWSER_MOUSE_CLICK_1 || - mouse & BROWSER_MOUSE_CLICK_2) { - content_mouse_action(html_object_box->object, - bw, mouse, - x - html_object_pos_x, - y - html_object_pos_y); - } else { - content_mouse_track(html_object_box->object, - bw, mouse, - x - html_object_pos_x, - y - html_object_pos_y); - } - } else if (url) { - if (nsoption_bool(display_decoded_idn) == true) { - if (nsurl_get_utf8(url, &url_s, &url_l) != NSERROR_OK) { - /* Unable to obtain a decoded IDN. This is not a fatal error. - * Ensure the string pointer is NULL so we use the encoded version. */ - url_s = NULL; - } - } - - if (title) { - snprintf(status_buffer, sizeof status_buffer, "%s: %s", - url_s ? url_s : nsurl_access(url), title); - } else { - snprintf(status_buffer, sizeof status_buffer, "%s", - url_s ? url_s : nsurl_access(url)); - } - - status = status_buffer; - - if (url_s != NULL) - free(url_s); - - pointer = get_pointer_shape(url_box, imagemap); - - if (mouse & BROWSER_MOUSE_CLICK_1 && - mouse & BROWSER_MOUSE_MOD_1) { - /* force download of link */ - browser_window_navigate(bw, - url, - content_get_url(c), - BW_NAVIGATE_DOWNLOAD, - NULL, - NULL, - NULL); - - } else if (mouse & BROWSER_MOUSE_CLICK_2 && - mouse & BROWSER_MOUSE_MOD_1) { - msg_data.savelink.url = url; - msg_data.savelink.title = title; - content_broadcast(c, CONTENT_MSG_SAVELINK, &msg_data); - - } else if (mouse & (BROWSER_MOUSE_CLICK_1 | - BROWSER_MOUSE_CLICK_2)) - action = ACTION_GO; - } else { - bool done = false; - - /* frame resizing */ - if (browser_window_frame_resize_start(bw, mouse, x, y, - &pointer)) { - if (mouse & (BROWSER_MOUSE_DRAG_1 | - BROWSER_MOUSE_DRAG_2)) { - status = messages_get("FrameDrag"); - } - done = true; - } - - /* if clicking in the main page, remove the selection from any - * text areas */ - if (!done) { - - if (click && html->focus_type != HTML_FOCUS_SELF) { - union html_focus_owner fo; - fo.self = true; - html_set_focus(html, HTML_FOCUS_SELF, fo, - true, 0, 0, 0, NULL); - } - if (click && html->selection_type != - HTML_SELECTION_SELF) { - sel_owner.none = true; - html_set_selection(html, HTML_SELECTION_NONE, - sel_owner, true); - } - - if (text_box) { - int pixel_offset; - size_t idx; - - font_plot_style_from_css(&html->len_ctx, - text_box->style, &fstyle); - - guit->layout->position(&fstyle, - text_box->text, - text_box->length, - x - text_box_x, - &idx, - &pixel_offset); - - if (selection_click(&html->sel, mouse, - text_box->byte_offset + idx)) { - /* key presses must be directed at the - * main browser window, paste text - * operations ignored */ - html_drag_type drag_type; - union html_drag_owner drag_owner; - - if (selection_dragging(&html->sel)) { - drag_type = HTML_DRAG_SELECTION; - drag_owner.no_owner = true; - html_set_drag_type(html, - drag_type, - drag_owner, - NULL); - status = messages_get( - "Selecting"); - } - - done = true; - } - - } else if (mouse & BROWSER_MOUSE_PRESS_1) { - sel_owner.none = true; - selection_clear(&html->sel, true); - } - - if (selection_defined(&html->sel)) { - sel_owner.none = false; - html_set_selection(html, HTML_SELECTION_SELF, - sel_owner, true); - } else if (click && html->selection_type != - HTML_SELECTION_NONE) { - sel_owner.none = true; - html_set_selection(html, HTML_SELECTION_NONE, - sel_owner, true); - } - } - - if (!done) { - if (title) - status = title; - - if (mouse & BROWSER_MOUSE_DRAG_1) { - if (mouse & BROWSER_MOUSE_MOD_2) { - msg_data.dragsave.type = - CONTENT_SAVE_COMPLETE; - msg_data.dragsave.content = NULL; - content_broadcast(c, - CONTENT_MSG_DRAGSAVE, - &msg_data); - } else { - if (drag_candidate == NULL) { - browser_window_page_drag_start( - bw, x, y); - } else { - html_box_drag_start( - drag_candidate, - x, y); - } - pointer = BROWSER_POINTER_MOVE; - } - } - else if (mouse & BROWSER_MOUSE_DRAG_2) { - if (mouse & BROWSER_MOUSE_MOD_2) { - msg_data.dragsave.type = - CONTENT_SAVE_SOURCE; - msg_data.dragsave.content = NULL; - content_broadcast(c, - CONTENT_MSG_DRAGSAVE, - &msg_data); - } else { - if (drag_candidate == NULL) { - browser_window_page_drag_start( - bw, x, y); - } else { - html_box_drag_start( - drag_candidate, - x, y); - } - pointer = BROWSER_POINTER_MOVE; - } - } - } - if (mouse && mouse < BROWSER_MOUSE_MOD_1) { - /* ensure key presses still act on the browser window */ - union html_focus_owner fo; - fo.self = true; - html_set_focus(html, HTML_FOCUS_SELF, fo, - true, 0, 0, 0, NULL); - } - } - - if (!iframe && !html_object_box) { - msg_data.explicit_status_text = status; - content_broadcast(c, CONTENT_MSG_STATUS, &msg_data); - - msg_data.pointer = pointer; - content_broadcast(c, CONTENT_MSG_POINTER, &msg_data); - } - - /* fire dom click event */ - if (mouse & BROWSER_MOUSE_CLICK_1) { - fire_dom_event(corestring_dom_click, node, true, true); - } - - /* deferred actions that can cause this browser_window to be destroyed - * and must therefore be done after set_status/pointer - */ - switch (action) { - case ACTION_SUBMIT: - form_submit(content_get_url(c), - browser_window_find_target(bw, target, mouse), - gadget->form, gadget); - break; - case ACTION_GO: - browser_window_navigate(browser_window_find_target(bw, target, mouse), - url, - content_get_url(c), - BW_NAVIGATE_HISTORY, - NULL, - NULL, - NULL); - break; - case ACTION_NONE: - break; - } -} - - -/** - * Handle keypresses. - * - * \param c content of type HTML - * \param key The UCS4 character codepoint - * \return true if key handled, false otherwise - */ - -bool html_keypress(struct content *c, uint32_t key) -{ - html_content *html = (html_content *) c; - struct selection *sel = &html->sel; - struct box *box; - - switch (html->focus_type) { - case HTML_FOCUS_CONTENT: - box = html->focus_owner.content; - return content_keypress(box->object, key); - - case HTML_FOCUS_TEXTAREA: - box = html->focus_owner.textarea; - return box_textarea_keypress(html, box, key); - - default: - /* Deal with it below */ - break; - } - - switch (key) { - case NS_KEY_COPY_SELECTION: - selection_copy_to_clipboard(sel); - return true; - - case NS_KEY_CLEAR_SELECTION: - selection_clear(sel, true); - return true; - - case NS_KEY_SELECT_ALL: - selection_select_all(sel); - return true; - - case NS_KEY_ESCAPE: - if (selection_defined(sel)) { - selection_clear(sel, true); - return true; - } - - /* if there's no selection, leave Escape for the caller */ - return false; - } - - return false; -} - - -/** - * Handle search. - * - * \param c content of type HTML - * \param context front end private data - * \param flags search flags - * \param string search string - */ -void html_search(struct content *c, void *context, - search_flags_t flags, const char *string) -{ - html_content *html = (html_content *)c; - - assert(c != NULL); - - if (string != NULL && html->search_string != NULL && - strcmp(string, html->search_string) == 0 && - html->search != NULL) { - /* Continue prev. search */ - search_step(html->search, flags, string); - - } else if (string != NULL) { - /* New search */ - free(html->search_string); - html->search_string = strdup(string); - if (html->search_string == NULL) - return; - - if (html->search != NULL) { - search_destroy_context(html->search); - html->search = NULL; - } - - html->search = search_create_context(c, CONTENT_HTML, context); - - if (html->search == NULL) - return; - - search_step(html->search, flags, string); - - } else { - /* Clear search */ - html_search_clear(c); - - free(html->search_string); - html->search_string = NULL; - } -} - - -/** - * Terminate a search. - * - * \param c content of type HTML - */ -void html_search_clear(struct content *c) -{ - html_content *html = (html_content *)c; - - assert(c != NULL); - - free(html->search_string); - html->search_string = NULL; - - if (html->search != NULL) { - search_destroy_context(html->search); - } - html->search = NULL; -} - - -/** - * Callback for in-page scrollbars. - */ -void html_overflow_scroll_callback(void *client_data, - struct scrollbar_msg_data *scrollbar_data) -{ - struct html_scrollbar_data *data = client_data; - html_content *html = (html_content *)data->c; - struct box *box = data->box; - union content_msg_data msg_data; - html_drag_type drag_type; - union html_drag_owner drag_owner; - - switch(scrollbar_data->msg) { - case SCROLLBAR_MSG_MOVED: - - if (html->reflowing == true) { - /* Can't redraw during layout, and it will - * be redrawn after layout anyway. */ - break; - } - - html__redraw_a_box(html, box); - break; - case SCROLLBAR_MSG_SCROLL_START: - { - struct rect rect = { - .x0 = scrollbar_data->x0, - .y0 = scrollbar_data->y0, - .x1 = scrollbar_data->x1, - .y1 = scrollbar_data->y1 - }; - drag_type = HTML_DRAG_SCROLLBAR; - drag_owner.scrollbar = scrollbar_data->scrollbar; - html_set_drag_type(html, drag_type, drag_owner, &rect); - } - break; - case SCROLLBAR_MSG_SCROLL_FINISHED: - drag_type = HTML_DRAG_NONE; - drag_owner.no_owner = true; - html_set_drag_type(html, drag_type, drag_owner, NULL); - - msg_data.pointer = BROWSER_POINTER_AUTO; - content_broadcast(data->c, CONTENT_MSG_POINTER, &msg_data); - break; - } -} - - -/** - * End overflow scroll scrollbar drags - * - * \param scrollbar scrollbar widget - * \param mouse state of mouse buttons and modifier keys - * \param x coordinate of mouse - * \param y coordinate of mouse - */ -void html_overflow_scroll_drag_end(struct scrollbar *scrollbar, - browser_mouse_state mouse, int x, int y) -{ - int scroll_mouse_x, scroll_mouse_y, box_x, box_y; - struct html_scrollbar_data *data = scrollbar_get_data(scrollbar); - struct box *box; - - box = data->box; - box_coords(box, &box_x, &box_y); - - if (scrollbar_is_horizontal(scrollbar)) { - scroll_mouse_x = x - box_x; - scroll_mouse_y = y - (box_y + box->padding[TOP] + - box->height + box->padding[BOTTOM] - - SCROLLBAR_WIDTH); - scrollbar_mouse_drag_end(scrollbar, mouse, - scroll_mouse_x, scroll_mouse_y); - } else { - scroll_mouse_x = x - (box_x + box->padding[LEFT] + - box->width + box->padding[RIGHT] - - SCROLLBAR_WIDTH); - scroll_mouse_y = y - box_y; - scrollbar_mouse_drag_end(scrollbar, mouse, - scroll_mouse_x, scroll_mouse_y); - } -} - -/* Documented in html_internal.h */ -void html_set_drag_type(html_content *html, html_drag_type drag_type, - union html_drag_owner drag_owner, const struct rect *rect) -{ - union content_msg_data msg_data; - - assert(html != NULL); - - html->drag_type = drag_type; - html->drag_owner = drag_owner; - - switch (drag_type) { - case HTML_DRAG_NONE: - assert(drag_owner.no_owner == true); - msg_data.drag.type = CONTENT_DRAG_NONE; - break; - - case HTML_DRAG_SCROLLBAR: - case HTML_DRAG_TEXTAREA_SCROLLBAR: - case HTML_DRAG_CONTENT_SCROLL: - msg_data.drag.type = CONTENT_DRAG_SCROLL; - break; - - case HTML_DRAG_SELECTION: - assert(drag_owner.no_owner == true); - /* Fall through */ - case HTML_DRAG_TEXTAREA_SELECTION: - case HTML_DRAG_CONTENT_SELECTION: - msg_data.drag.type = CONTENT_DRAG_SELECTION; - break; - } - msg_data.drag.rect = rect; - - /* Inform of the content's drag status change */ - content_broadcast((struct content *)html, CONTENT_MSG_DRAG, &msg_data); -} - -/* Documented in html_internal.h */ -void html_set_focus(html_content *html, html_focus_type focus_type, - union html_focus_owner focus_owner, bool hide_caret, - int x, int y, int height, const struct rect *clip) -{ - union content_msg_data msg_data; - int x_off = 0; - int y_off = 0; - struct rect cr; - bool textarea_lost_focus = html->focus_type == HTML_FOCUS_TEXTAREA && - focus_type != HTML_FOCUS_TEXTAREA; - - assert(html != NULL); - - switch (focus_type) { - case HTML_FOCUS_SELF: - assert(focus_owner.self == true); - if (html->focus_type == HTML_FOCUS_SELF) - /* Don't need to tell anyone anything */ - return; - break; - - case HTML_FOCUS_CONTENT: - box_coords(focus_owner.content, &x_off, &y_off); - break; - - case HTML_FOCUS_TEXTAREA: - box_coords(focus_owner.textarea, &x_off, &y_off); - break; - } - - html->focus_type = focus_type; - html->focus_owner = focus_owner; - - if (textarea_lost_focus) { - msg_data.caret.type = CONTENT_CARET_REMOVE; - } else if (focus_type != HTML_FOCUS_SELF && hide_caret) { - msg_data.caret.type = CONTENT_CARET_HIDE; - } else { - if (clip != NULL) { - cr = *clip; - cr.x0 += x_off; - cr.y0 += y_off; - cr.x1 += x_off; - cr.y1 += y_off; - } - - msg_data.caret.type = CONTENT_CARET_SET_POS; - msg_data.caret.pos.x = x + x_off; - msg_data.caret.pos.y = y + y_off; - msg_data.caret.pos.height = height; - msg_data.caret.pos.clip = (clip == NULL) ? NULL : &cr; - } - - /* Inform of the content's drag status change */ - content_broadcast((struct content *)html, CONTENT_MSG_CARET, &msg_data); -} - -/* Documented in html_internal.h */ -void html_set_selection(html_content *html, html_selection_type selection_type, - union html_selection_owner selection_owner, bool read_only) -{ - union content_msg_data msg_data; - struct box *box; - bool changed = false; - bool same_type = html->selection_type == selection_type; - - assert(html != NULL); - - if ((selection_type == HTML_SELECTION_NONE && - html->selection_type != HTML_SELECTION_NONE) || - (selection_type != HTML_SELECTION_NONE && - html->selection_type == HTML_SELECTION_NONE)) - /* Existance of selection has changed, and we'll need to - * inform our owner */ - changed = true; - - /* Clear any existing selection */ - if (html->selection_type != HTML_SELECTION_NONE) { - switch (html->selection_type) { - case HTML_SELECTION_SELF: - if (same_type) - break; - selection_clear(&html->sel, true); - break; - case HTML_SELECTION_TEXTAREA: - if (same_type && html->selection_owner.textarea == - selection_owner.textarea) - break; - box = html->selection_owner.textarea; - textarea_clear_selection(box->gadget->data.text.ta); - break; - case HTML_SELECTION_CONTENT: - if (same_type && html->selection_owner.content == - selection_owner.content) - break; - box = html->selection_owner.content; - content_clear_selection(box->object); - break; - default: - break; - } - } - - html->selection_type = selection_type; - html->selection_owner = selection_owner; - - if (!changed) - /* Don't need to report lack of change to owner */ - return; - - /* Prepare msg */ - switch (selection_type) { - case HTML_SELECTION_NONE: - assert(selection_owner.none == true); - msg_data.selection.selection = false; - break; - case HTML_SELECTION_SELF: - assert(selection_owner.none == false); - /* fall through */ - case HTML_SELECTION_TEXTAREA: - case HTML_SELECTION_CONTENT: - msg_data.selection.selection = true; - break; - default: - break; - } - msg_data.selection.read_only = read_only; - - /* Inform of the content's selection status change */ - content_broadcast((struct content *)html, CONTENT_MSG_SELECTION, - &msg_data); -} |