From 3224d7121aff91ab8d888831dc493ef621e3dd39 Mon Sep 17 00:00:00 2001 From: Vincent Sanders Date: Mon, 23 May 2016 23:32:16 +0100 Subject: move image content handlers to accomodate core build changes --- content/handlers/image/ico.c | 300 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 300 insertions(+) create mode 100644 content/handlers/image/ico.c (limited to 'content/handlers/image/ico.c') diff --git a/content/handlers/image/ico.c b/content/handlers/image/ico.c new file mode 100644 index 000000000..d364fdff5 --- /dev/null +++ b/content/handlers/image/ico.c @@ -0,0 +1,300 @@ +/* + * Copyright 2006 Richard Wilson + * + * 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 . + */ + +/** \file + * Content for image/ico (implementation) + */ + +#include +#include +#include + +#include "utils/utils.h" +#include "utils/log.h" +#include "utils/messages.h" +#include "content/content_protected.h" +#include "desktop/gui_internal.h" + +#include "image.h" +#include "bitmap.h" +#include "ico.h" + +typedef struct nsico_content { + struct content base; + + struct ico_collection *ico; /** ICO collection data */ + +} nsico_content; + +/** + * Callback for libnsbmp; forwards the call to bitmap_create() + * + * \param width width of image in pixels + * \param height width of image in pixels + * \param bmp_state A flag word indicating the initial state + * \return an opaque struct bitmap, or NULL on memory exhaustion + */ +static void *nsico_bitmap_create(int width, int height, unsigned int bmp_state) +{ + unsigned int bitmap_state = BITMAP_NEW; + + /* set bitmap state based on bmp state */ + bitmap_state |= (bmp_state & BMP_OPAQUE) ? BITMAP_OPAQUE : 0; + bitmap_state |= (bmp_state & BMP_CLEAR_MEMORY) ? + BITMAP_CLEAR_MEMORY : 0; + + /* return the created bitmap */ + return guit->bitmap->create(width, height, bitmap_state); +} + +static nserror nsico_create_ico_data(nsico_content *c) +{ + union content_msg_data msg_data; + bmp_bitmap_callback_vt bmp_bitmap_callbacks = { + .bitmap_create = nsico_bitmap_create, + .bitmap_destroy = guit->bitmap->destroy, + .bitmap_get_buffer = guit->bitmap->get_buffer, + .bitmap_get_bpp = guit->bitmap->get_bpp + }; + + c->ico = calloc(sizeof(ico_collection), 1); + if (c->ico == NULL) { + msg_data.error = messages_get("NoMemory"); + content_broadcast(&c->base, CONTENT_MSG_ERROR, msg_data); + return NSERROR_NOMEM; + } + ico_collection_create(c->ico, &bmp_bitmap_callbacks); + return NSERROR_OK; +} + + +static nserror nsico_create(const content_handler *handler, + lwc_string *imime_type, const struct http_parameter *params, + llcache_handle *llcache, const char *fallback_charset, + bool quirks, struct content **c) +{ + nsico_content *result; + nserror error; + + result = calloc(1, sizeof(nsico_content)); + if (result == NULL) + return NSERROR_NOMEM; + + error = content__init(&result->base, handler, imime_type, params, + llcache, fallback_charset, quirks); + if (error != NSERROR_OK) { + free(result); + return error; + } + + error = nsico_create_ico_data(result); + if (error != NSERROR_OK) { + free(result); + return error; + } + + *c = (struct content *) result; + + return NSERROR_OK; +} + + + +static bool nsico_convert(struct content *c) +{ + nsico_content *ico = (nsico_content *) c; + struct bmp_image *bmp; + bmp_result res; + union content_msg_data msg_data; + const char *data; + unsigned long size; + char *title; + + /* set the ico data */ + data = content__get_source_data(c, &size); + + /* analyse the ico */ + res = ico_analyse(ico->ico, size, (unsigned char *) data); + + switch (res) { + case BMP_OK: + break; + case BMP_INSUFFICIENT_MEMORY: + msg_data.error = messages_get("NoMemory"); + content_broadcast(c, CONTENT_MSG_ERROR, msg_data); + return false; + case BMP_INSUFFICIENT_DATA: + case BMP_DATA_ERROR: + msg_data.error = messages_get("BadICO"); + content_broadcast(c, CONTENT_MSG_ERROR, msg_data); + return false; + } + + /* Store our content width, height and calculate size */ + c->width = ico->ico->width; + c->height = ico->ico->height; + c->size += (ico->ico->width * ico->ico->height * 4) + 16 + 44; + + /* set title text */ + title = messages_get_buff("ICOTitle", + nsurl_access_leaf(llcache_handle_get_url(c->llcache)), + c->width, c->height); + if (title != NULL) { + content__set_title(c, title); + free(title); + } + + /* select largest icon to ensure one can be selected */ + bmp = ico_find(ico->ico, 255, 255); + if (bmp == NULL) { + /* return error */ + LOG("Failed to select icon"); + return false; + } + + content_set_ready(c); + content_set_done(c); + + /* Done: update status bar */ + content_set_status(c, ""); + return true; +} + + +static bool nsico_redraw(struct content *c, struct content_redraw_data *data, + const struct rect *clip, const struct redraw_context *ctx) +{ + nsico_content *ico = (nsico_content *)c; + struct bmp_image *bmp; + + /* select most appropriate sized icon for size */ + bmp = ico_find(ico->ico, data->width, data->height); + if (bmp == NULL) { + /* return error */ + LOG("Failed to select icon"); + return false; + } + + /* ensure its decided */ + if (bmp->decoded == false) { + if (bmp_decode(bmp) != BMP_OK) { + return false; + } else { + LOG("Decoding bitmap"); + guit->bitmap->modified(bmp->bitmap); + } + + } + + return image_bitmap_plot(bmp->bitmap, data, clip, ctx); +} + + +static void nsico_destroy(struct content *c) +{ + nsico_content *ico = (nsico_content *) c; + + ico_finalise(ico->ico); + free(ico->ico); +} + +static nserror nsico_clone(const struct content *old, struct content **newc) +{ + nsico_content *ico; + nserror error; + + ico = calloc(1, sizeof(nsico_content)); + if (ico == NULL) + return NSERROR_NOMEM; + + error = content__clone(old, &ico->base); + if (error != NSERROR_OK) { + content_destroy(&ico->base); + return error; + } + + /* Simply replay creation and conversion */ + error = nsico_create_ico_data(ico); + if (error != NSERROR_OK) { + content_destroy(&ico->base); + return error; + } + + if (old->status == CONTENT_STATUS_READY || + old->status == CONTENT_STATUS_DONE) { + if (nsico_convert(&ico->base) == false) { + content_destroy(&ico->base); + return NSERROR_CLONE_FAILED; + } + } + + *newc = (struct content *) ico; + + return NSERROR_OK; +} + +static void *nsico_get_internal(const struct content *c, void *context) +{ + nsico_content *ico = (nsico_content *) c; + /* TODO: Pick best size for purpose. + * Currently assumes it's for a URL bar. */ + struct bmp_image *bmp; + + bmp = ico_find(ico->ico, 16, 16); + if (bmp == NULL) { + /* return error */ + LOG("Failed to select icon"); + return NULL; + } + + if (bmp->decoded == false) { + if (bmp_decode(bmp) != BMP_OK) { + return NULL; + } else { + guit->bitmap->modified(bmp->bitmap); + } + } + + return bmp->bitmap; +} + +static content_type nsico_content_type(void) +{ + return CONTENT_IMAGE; +} + +static const content_handler nsico_content_handler = { + .create = nsico_create, + .data_complete = nsico_convert, + .destroy = nsico_destroy, + .redraw = nsico_redraw, + .clone = nsico_clone, + .get_internal = nsico_get_internal, + .type = nsico_content_type, + .no_share = false, +}; + +static const char *nsico_types[] = { + "application/ico", + "application/x-ico", + "image/ico", + "image/vnd.microsoft.icon", + "image/x-icon" +}; + +CONTENT_FACTORY_REGISTER_TYPES(nsico, nsico_types, nsico_content_handler); -- cgit v1.2.3