summaryrefslogtreecommitdiff
path: root/desktop/browser.c
diff options
context:
space:
mode:
Diffstat (limited to 'desktop/browser.c')
-rw-r--r--desktop/browser.c552
1 files changed, 284 insertions, 268 deletions
diff --git a/desktop/browser.c b/desktop/browser.c
index 295e8f1a1..12d1e18c0 100644
--- a/desktop/browser.c
+++ b/desktop/browser.c
@@ -5,6 +5,7 @@
* Copyright 2004 John Tytgat <joty@netsurf-browser.org>
* 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/
*
@@ -46,6 +47,7 @@
#include "desktop/history_core.h"
#include "desktop/gui.h"
#include "desktop/options.h"
+#include "desktop/scroll.h"
#include "desktop/selection.h"
#include "desktop/textinput.h"
#include "render/box.h"
@@ -109,9 +111,6 @@ static void browser_window_mouse_track_html(struct browser_window *bw,
browser_mouse_state mouse, int x, int y);
static void browser_window_mouse_track_text(struct browser_window *bw,
browser_mouse_state mouse, int x, int y);
-static const char *browser_window_scrollbar_click(struct browser_window *bw,
- browser_mouse_state mouse, struct box *box,
- int box_x, int box_y, int x, int y);
static void browser_radio_set(struct content *content,
struct form_control *radio);
static gui_pointer_shape get_pointer_shape(struct browser_window *bw,
@@ -126,9 +125,8 @@ static struct box *browser_window_pick_text_box(struct browser_window *bw,
int x, int y, int dir, int *dx, int *dy);
static void browser_window_page_drag_start(struct browser_window *bw,
int x, int y);
-static void browser_window_scroll_box(struct browser_window *bw,
- struct box *box, int scroll_x, int scroll_y);
-
+static void browser_window_box_drag_start(struct browser_window *bw,
+ struct box *box, int x, int y);
/**
* Create and open a new browser window with the given page.
@@ -443,7 +441,7 @@ void browser_window_callback(content_msg msg, struct content *c,
bw->current_content = c;
bw->loading_content = NULL;
browser_window_remove_caret(bw);
- bw->scrolling_box = NULL;
+ bw->scroll = NULL;
gui_window_new_content(bw->window);
if (bw->current_content) {
browser_window_refresh_url_bar(bw,
@@ -514,7 +512,7 @@ void browser_window_callback(content_msg msg, struct content *c,
else if (c == bw->current_content) {
bw->current_content = 0;
browser_window_remove_caret(bw);
- bw->scrolling_box = NULL;
+ bw->scroll = NULL;
selection_init(bw->sel, NULL);
}
browser_window_stop_throbber(bw);
@@ -591,7 +589,7 @@ void browser_window_callback(content_msg msg, struct content *c,
else if (c == bw->current_content) {
bw->current_content = 0;
browser_window_remove_caret(bw);
- bw->scrolling_box = NULL;
+ bw->scroll = NULL;
selection_init(bw->sel, NULL);
}
browser_window_stop_throbber(bw);
@@ -606,7 +604,7 @@ void browser_window_callback(content_msg msg, struct content *c,
else if (c == bw->current_content) {
bw->current_content = 0;
browser_window_remove_caret(bw);
- bw->scrolling_box = NULL;
+ bw->scroll = NULL;
selection_init(bw->sel, NULL);
}
browser_window_stop_throbber(bw);
@@ -1103,6 +1101,8 @@ void browser_window_refresh_url_bar(struct browser_window *bw, const char *url,
assert(bw);
assert(url);
+
+ bw->visible_select_menu = NULL;
if (frag == NULL) {
/* With no fragment, we may as well pass url straight through
@@ -1392,11 +1392,9 @@ void browser_window_mouse_action_html(struct browser_window *bw,
bool imagemap = false;
int box_x = 0, box_y = 0;
int gadget_box_x = 0, gadget_box_y = 0;
- int scroll_box_x = 0, scroll_box_y = 0;
int text_box_x = 0;
struct box *url_box = 0;
struct box *gadget_box = 0;
- struct box *scroll_box = 0;
struct box *text_box = 0;
struct content *c = bw->current_content;
struct box *box;
@@ -1405,10 +1403,60 @@ void browser_window_mouse_action_html(struct browser_window *bw,
struct form_control *gadget = 0;
struct content *object = NULL;
struct box *next_box;
+ struct box *drag_candidate = NULL;
+ struct scroll *scroll = NULL;
plot_font_style_t fstyle;
-
+ int scroll_mouse_x = 0, scroll_mouse_y = 0;
+ int padding_left, padding_right, padding_top, padding_bottom;
+
+
+ if (bw->visible_select_menu != NULL) {
+ box = bw->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(bw->visible_select_menu,
+ mouse, x - box_x, y - box_y);
+ if (status != NULL)
+ browser_window_set_status(bw, status);
+ else {
+ int width, height;
+ form_select_get_dimensions(bw->visible_select_menu,
+ &width, &height);
+ bw->visible_select_menu = NULL;
+ browser_window_redraw_rect(bw, box_x, box_y,
+ width, height);
+ }
+ return;
+ }
+
+ if (bw->scroll != NULL) {
+ struct browser_scroll_data *data = scroll_get_data(bw->scroll);
+ box = data->box;
+ box_coords(box, &box_x, &box_y);
+ if (scroll_is_horizontal(bw->scroll)) {
+ scroll_mouse_x = x - box_x ;
+ scroll_mouse_y = y - (box_y + box->padding[TOP] +
+ box->height + box->padding[BOTTOM] -
+ SCROLLBAR_WIDTH);
+ status = scroll_mouse_action(bw->scroll, 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 = scroll_mouse_action(bw->scroll, mouse,
+ scroll_mouse_x, scroll_mouse_y);
+ }
+
+ browser_window_set_status(bw, status);
+ return;
+ }
+
bw->drag_type = DRAGGING_NONE;
- bw->scrolling_box = NULL;
/* search the box tree for a link, imagemap, form control, or
* box with scrollbars */
@@ -1465,20 +1513,44 @@ void browser_window_mouse_action_html(struct browser_window *bw,
if (box->style)
overflow = css_computed_overflow(box->style);
- if (box->style && box->type != BOX_BR &&
- box->type != BOX_INLINE &&
- box->type != BOX_TEXT &&
- (overflow == CSS_OVERFLOW_SCROLL ||
- overflow == CSS_OVERFLOW_AUTO) &&
- ((box_vscrollbar_present(box) &&
- box_x + box->scroll_x + box->padding[LEFT] +
- box->width < x) ||
- (box_hscrollbar_present(box) &&
- box_y + box->scroll_y + box->padding[TOP] +
- box->height < y))) {
- scroll_box = box;
- scroll_box_x = box_x + box->scroll_x;
- scroll_box_y = box_y + box->scroll_y;
+ if ((box->scroll_x != NULL || box->scroll_y != NULL) &&
+ drag_candidate == NULL)
+ drag_candidate = box;
+
+ if (box->scroll_y != NULL || box->scroll_x != NULL) {
+ padding_left = box_x + scroll_get_offset(box->scroll_x);
+ padding_right = padding_left + box->padding[LEFT] +
+ box->width + box->padding[RIGHT];
+ padding_top = box_y + scroll_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 */
+
+ scroll = 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 */
+
+ scroll = box->scroll_x;
+ scroll_mouse_x = x - padding_left;
+ scroll_mouse_y = y - (padding_bottom -
+ SCROLLBAR_WIDTH);
+ break;
+ }
+ }
}
if (box->text && !box->object) {
@@ -1490,17 +1562,23 @@ void browser_window_mouse_action_html(struct browser_window *bw,
/* 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 */
- if (scroll_box) {
- status = browser_window_scrollbar_click(bw, mouse, scroll_box,
- scroll_box_x, scroll_box_y,
- x - scroll_box_x, y - scroll_box_y);
+ if (scroll) {
+ status = scroll_mouse_action(scroll, mouse,
+ scroll_mouse_x, scroll_mouse_y);
pointer = GUI_POINTER_DEFAULT;
} else if (gadget) {
switch (gadget->type) {
case GADGET_SELECT:
status = messages_get("FormSelect");
pointer = GUI_POINTER_MENU;
- if (mouse & BROWSER_MOUSE_CLICK_1)
+ if (mouse & BROWSER_MOUSE_CLICK_1 &&
+ option_core_select_menu) {
+ bw->visible_select_menu = gadget;
+ form_open_select_menu(bw, gadget,
+ browser_select_menu_callback,
+ bw);
+ pointer = GUI_POINTER_DEFAULT;
+ } else if (mouse & BROWSER_MOUSE_CLICK_1)
gui_create_form_select_menu(bw, gadget);
break;
case GADGET_CHECKBOX:
@@ -1749,8 +1827,15 @@ void browser_window_mouse_action_html(struct browser_window *bw,
gui_drag_save_object(GUI_SAVE_COMPLETE,
c, bw->window);
} else {
- browser_window_page_drag_start(bw,
- x, y);
+ if (drag_candidate == NULL)
+ browser_window_page_drag_start(
+ bw, x, y);
+ else {
+ browser_window_box_drag_start(
+ bw,
+ drag_candidate,
+ x, y);
+ }
pointer = GUI_POINTER_MOVE;
}
}
@@ -1759,8 +1844,15 @@ void browser_window_mouse_action_html(struct browser_window *bw,
gui_drag_save_object(GUI_SAVE_SOURCE,
c, bw->window);
} else {
- browser_window_page_drag_start(bw,
- x, y);
+ if (drag_candidate == NULL)
+ browser_window_page_drag_start(
+ bw, x, y);
+ else {
+ browser_window_box_drag_start(
+ bw,
+ drag_candidate,
+ x, y);
+ }
pointer = GUI_POINTER_MOVE;
}
}
@@ -1926,54 +2018,8 @@ void browser_window_mouse_track(struct browser_window *bw,
void browser_window_mouse_track_html(struct browser_window *bw,
browser_mouse_state mouse, int x, int y)
{
+
switch (bw->drag_type) {
- case DRAGGING_HSCROLL:
- case DRAGGING_VSCROLL:
- case DRAGGING_2DSCROLL: {
- struct box *box = bw->scrolling_box;
- int scroll_y;
- int scroll_x;
-
- assert(box);
-
- if (bw->drag_type == DRAGGING_HSCROLL) {
- scroll_y = box->scroll_y;
- } else {
- scroll_y = bw->drag_start_scroll_y +
- (float) (y - bw->drag_start_y) /
- (float) bw->drag_well_height *
- (float) (box->descendant_y1 -
- box->descendant_y0);
- if (scroll_y < box->descendant_y0)
- scroll_y = box->descendant_y0;
- else if (box->descendant_y1 - box->height <
- scroll_y)
- scroll_y = box->descendant_y1 -
- box->height;
- if (scroll_y == box->scroll_y)
- return;
- }
-
- if (bw->drag_type == DRAGGING_VSCROLL) {
- scroll_x = box->scroll_x;
- } else {
- scroll_x = bw->drag_start_scroll_x +
- (float) (x - bw->drag_start_x) /
- (float) bw->drag_well_width *
- (float) (box->descendant_x1 -
- box->descendant_x0);
- if (scroll_x < box->descendant_x0)
- scroll_x = box->descendant_x0;
- else if (box->descendant_x1 - box->width <
- scroll_x)
- scroll_x = box->descendant_x1 -
- box->width;
- }
-
- browser_window_scroll_box(bw, box, scroll_x, scroll_y);
- }
- break;
-
case DRAGGING_SELECTION: {
struct box *box;
int dir = -1;
@@ -2052,6 +2098,43 @@ void browser_window_mouse_track_text(struct browser_window *bw,
void browser_window_mouse_drag_end(struct browser_window *bw,
browser_mouse_state mouse, int x, int y)
{
+ struct box *box;
+ int scroll_mouse_x, scroll_mouse_y, box_x, box_y;
+
+ if (bw->visible_select_menu != NULL) {
+ box = bw->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];
+ form_select_mouse_drag_end(bw->visible_select_menu,
+ mouse, x - box_x, y - box_y);
+ return;
+ }
+
+ if (bw->scroll != NULL) {
+ struct browser_scroll_data *data = scroll_get_data(bw->scroll);
+ box = data->box;
+ box_coords(box, &box_x, &box_y);
+ if (scroll_is_horizontal(bw->scroll)) {
+ scroll_mouse_x = x - box_x;
+ scroll_mouse_y = y - (box_y + box->padding[TOP] +
+ box->height + box->padding[BOTTOM] -
+ SCROLLBAR_WIDTH);
+ scroll_mouse_drag_end(bw->scroll, 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;
+ scroll_mouse_drag_end(bw->scroll, mouse,
+ scroll_mouse_x, scroll_mouse_y);
+ }
+ return;
+ }
+
switch (bw->drag_type) {
case DRAGGING_SELECTION: {
struct content *c = bw->current_content;
@@ -2104,13 +2187,6 @@ void browser_window_mouse_drag_end(struct browser_window *bw,
}
break;
- case DRAGGING_2DSCROLL:
- case DRAGGING_PAGE_SCROLL:
- case DRAGGING_FRAME:
- browser_window_set_pointer(bw->window,
- GUI_POINTER_DEFAULT);
- break;
-
default:
break;
}
@@ -2120,157 +2196,6 @@ void browser_window_mouse_drag_end(struct browser_window *bw,
/**
- * Handle mouse clicks in a box scrollbar.
- *
- * \param bw browser window
- * \param mouse state of mouse buttons and modifier keys
- * \param box scrolling box
- * \param box_x position of box in global document coordinates
- * \param box_y position of box in global document coordinates
- * \param x coordinate of click relative to box position
- * \param y coordinate of click relative to box position
- * \return status bar message
- */
-
-const char *browser_window_scrollbar_click(struct browser_window *bw,
- browser_mouse_state mouse, struct box *box,
- int box_x, int box_y, int x, int y)
-{
- bool but1 = ((mouse & BROWSER_MOUSE_PRESS_1) ||
- ((mouse & BROWSER_MOUSE_HOLDING_1) &&
- (mouse & BROWSER_MOUSE_DRAG_ON)));
- bool but2 = ((mouse & BROWSER_MOUSE_PRESS_2) ||
- ((mouse & BROWSER_MOUSE_HOLDING_2) &&
- (mouse & BROWSER_MOUSE_DRAG_ON)));
- const int w = SCROLLBAR_WIDTH;
- bool vscroll, hscroll;
- int well_height, bar_top, bar_height;
- int well_width, bar_left, bar_width;
- const char *status = 0;
- bool vert;
- int z, scroll, bar_start, bar_size, well_size, page;
-
- box_scrollbar_dimensions(box,
- box->padding[LEFT] + box->width + box->padding[RIGHT],
- box->padding[TOP] + box->height + box->padding[BOTTOM],
- w,
- &vscroll, &hscroll,
- &well_height, &bar_top, &bar_height,
- &well_width, &bar_left, &bar_width);
-
- /* store some data for scroll drags */
- bw->scrolling_box = box;
- bw->drag_start_x = box_x + x;
- bw->drag_start_y = box_y + y;
- bw->drag_start_scroll_x = box->scroll_x;
- bw->drag_start_scroll_y = box->scroll_y;
- bw->drag_well_width = well_width;
- bw->drag_well_height = well_height;
-
- /* determine which scrollbar was clicked */
- if (box_vscrollbar_present(box) &&
- box->padding[LEFT] + box->width < x) {
- vert = true;
- z = y;
- scroll = box->scroll_y;
- well_size = well_height;
- bar_start = bar_top;
- bar_size = bar_height;
- page = box->height;
- } else {
- vert = false;
- z = x;
- scroll = box->scroll_x;
- well_size = well_width;
- bar_start = bar_left;
- bar_size = bar_width;
- page = box->width;
- }
-
- /* find icon in scrollbar and calculate scroll */
- if (z < w) {
- /* on scrollbar bump arrow button */
- status = messages_get(vert ? "ScrollUp" : "ScrollLeft");
- if (but1)
- scroll -= 16;
- else if (but2)
- scroll += 16;
- } else if (z < w + bar_start + w / 4) {
- /* in scrollbar well */
- status = messages_get(vert ? "ScrollPUp" : "ScrollPLeft");
- if (but1)
- scroll -= page;
- else if (but2)
- scroll += page;
- } else if (z < w + bar_start + bar_size - w / 4) {
- /* in scrollbar */
- status = messages_get(vert ? "ScrollV" : "ScrollH");
-
- if (mouse & (BROWSER_MOUSE_HOLDING_1 |
- BROWSER_MOUSE_HOLDING_2)) {
- int x0 = 0, x1 = 0;
- int y0 = 0, y1 = 0;
-
- if (mouse & BROWSER_MOUSE_HOLDING_1) {
- bw->drag_type = vert ? DRAGGING_VSCROLL :
- DRAGGING_HSCROLL;
- } else
- bw->drag_type = DRAGGING_2DSCROLL;
-
- /* \todo - some proper numbers please! */
- if (bw->drag_type != DRAGGING_VSCROLL) {
- x0 = -1024;
- x1 = 1024;
- }
- if (bw->drag_type != DRAGGING_HSCROLL) {
- y0 = -1024;
- y1 = 1024;
- }
- gui_window_box_scroll_start(bw->window, x0, y0, x1, y1);
- if (bw->drag_type == DRAGGING_2DSCROLL)
- gui_window_hide_pointer(bw->window);
- }
- } else if (z < w + well_size) {
- /* in scrollbar well */
- status = messages_get(vert ? "ScrollPDown" : "ScrollPRight");
- if (but1)
- scroll += page;
- else if (but2)
- scroll -= page;
- } else {
- /* on scrollbar bump arrow button */
- status = messages_get(vert ? "ScrollDown" : "ScrollRight");
- if (but1)
- scroll += 16;
- else if (but2)
- scroll -= 16;
- }
-
- /* update box and redraw */
- if (vert) {
- if (scroll < box->descendant_y0)
- scroll = box->descendant_y0;
- else if (box->descendant_y1 - box->height < scroll)
- scroll = box->descendant_y1 - box->height;
- if (scroll != box->scroll_y)
- browser_window_scroll_box(bw, box, box->scroll_x,
- scroll);
-
- } else {
- if (scroll < box->descendant_x0)
- scroll = box->descendant_x0;
- else if (box->descendant_x1 - box->width < scroll)
- scroll = box->descendant_x1 - box->width;
- if (scroll != box->scroll_x)
- browser_window_scroll_box(bw, box, scroll,
- box->scroll_y);
- }
-
- return status;
-}
-
-
-/**
* Set a radio form control and clear the others in the group.
*
* \param content content containing the form, of type CONTENT_TYPE
@@ -2380,27 +2305,6 @@ void browser_redraw_box(struct content *c, struct box *box)
/**
- * Update the scroll offsets of a box within a browser window
- * (In future, copying where possible, rather than redrawing the entire box)
- *
- * \param bw browser window
- * \param box box to be updated
- * \param scroll_x new horizontal scroll offset
- * \param scroll_y new vertical scroll offset
- */
-
-void browser_window_scroll_box(struct browser_window *bw, struct box *box,
- int scroll_x, int scroll_y)
-{
- box->scroll_x = scroll_x;
- box->scroll_y = scroll_y;
-
- /* fall back to redrawing the whole box */
- browser_redraw_box(bw->current_content, box);
-}
-
-
-/**
* Process a selection from a form select menu.
*
* \param bw browser window with menu
@@ -2643,6 +2547,79 @@ void browser_form_submit(struct browser_window *bw, struct browser_window *targe
free(url);
}
+/**
+ * Callback for in-page scrolls.
+ */
+void browser_scroll_callback(void *client_data,
+ struct scroll_msg_data *scroll_data)
+{
+ struct browser_scroll_data *data = client_data;
+ struct browser_window *bw = data->bw;
+ struct box *box = data->box;
+ int x, y, box_x, box_y, diff_x, diff_y;
+
+
+ switch(scroll_data->msg) {
+ case SCROLL_MSG_REDRAW:
+ diff_x = box->padding[LEFT] + box->width +
+ box->padding[RIGHT] - SCROLLBAR_WIDTH;
+ diff_y = box->padding[TOP] + box->height +
+ box->padding[BOTTOM] - SCROLLBAR_WIDTH;
+
+ box_coords(box, &box_x, &box_y);
+ if (scroll_is_horizontal(scroll_data->scroll)) {
+ x = box_x + scroll_get_offset(box->scroll_x);
+ y = box_y + scroll_get_offset(box->scroll_y) +
+ diff_y;
+ } else {
+ x = box_x + scroll_get_offset(box->scroll_x) +
+ diff_x;
+ y = box_y + scroll_get_offset(box->scroll_y);
+ }
+ browser_window_redraw_rect(bw,
+ x + scroll_data->x0,
+ y + scroll_data->y0,
+ scroll_data->x1 - scroll_data->x0,
+ scroll_data->y1 - scroll_data->y0);
+ break;
+ case SCROLL_MSG_MOVED:
+ browser_redraw_box(bw->current_content, box);
+ break;
+ case SCROLL_MSG_SCROLL_START:
+ bw->scroll = scroll_data->scroll;
+ gui_window_box_scroll_start(bw->window,
+ scroll_data->x0, scroll_data->y0,
+ scroll_data->x1, scroll_data->y1);
+ break;
+ case SCROLL_MSG_SCROLL_FINISHED:
+ bw->scroll = NULL;
+
+ browser_window_set_pointer(bw->window,
+ GUI_POINTER_DEFAULT);
+ break;
+ }
+}
+
+/**
+ * Callback for the core select menu.
+ */
+void browser_select_menu_callback(void *client_data,
+ int x, int y, int width, int height)
+{
+ struct browser_window *bw = client_data;
+ int menu_x, menu_y;
+ struct box *box;
+
+ box = bw->visible_select_menu->box;
+ box_coords(box, &menu_x, &menu_y);
+
+ menu_x -= box->border[LEFT].width;
+ menu_y += box->height + box->border[BOTTOM].width +
+ box->padding[BOTTOM] +
+ box->padding[TOP];
+ browser_window_redraw_rect(bw, menu_x + x, menu_y + y,
+ width, height);
+}
/**
@@ -2766,11 +2743,15 @@ bool browser_window_nearest_text_box(struct box *box, int bx, int by,
while (child) {
if (child->type == BOX_FLOAT_LEFT ||
child->type == BOX_FLOAT_RIGHT) {
- c_bx = fx + child->x - child->scroll_x;
- c_by = fy + child->y - child->scroll_y;
+ c_bx = fx + child->x -
+ scroll_get_offset(child->scroll_x);
+ c_by = fy + child->y -
+ scroll_get_offset(child->scroll_y);
} else {
- c_bx = bx + child->x - child->scroll_x;
- c_by = by + child->y - child->scroll_y;
+ c_bx = bx + child->x -
+ scroll_get_offset(child->scroll_x);
+ c_by = by + child->y -
+ scroll_get_offset(child->scroll_y);
}
if (child->float_children) {
c_fx = c_bx;
@@ -2880,11 +2861,46 @@ void browser_window_page_drag_start(struct browser_window *bw, int x, int y)
bw->drag_start_x = x;
bw->drag_start_y = y;
- gui_window_get_scroll(bw->window, &bw->drag_start_scroll_x, &bw->drag_start_scroll_y);
+ gui_window_get_scroll(bw->window, &bw->drag_start_scroll_x,
+ &bw->drag_start_scroll_y);
gui_window_scroll_start(bw->window);
}
+/**
+ * Start drag scrolling the contents of a box
+ *
+ * \param bw browser window
+ * \param box the box to be scrolled
+ * \param x x ordinate of initial mouse position
+ * \param y y ordinate
+ */
+
+void browser_window_box_drag_start(struct browser_window *bw,
+ struct box *box, int x, int y)
+{
+ int box_x, box_y, 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);
+ scroll_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;
+
+ scroll_start_content_drag(box->scroll_y,
+ scroll_mouse_x, scroll_mouse_y);
+ }
+}
+
/**
* Check availability of Back action for a given browser window
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-23 15:51:04 +0000