/* * 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 #include #include "utils/config.h" #include "content/content_protected.h" #include "content/hlcache.h" #include "desktop/plotters.h" #include "image/bitmap.h" #include "image/bmp.h" #include "image/ico.h" #include "image/image.h" #include "utils/log.h" #include "utils/messages.h" #include "utils/utils.h" typedef struct nsico_content { struct content base; struct ico_collection *ico; /** ICO collection data */ } nsico_content; static nserror nsico_create_ico_data(nsico_content *c) { union content_msg_data msg_data; 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")); 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 { 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);