/* * 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 "utils/config.h" #ifdef WITH_BMP #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 "utils/log.h" #include "utils/messages.h" #include "utils/talloc.h" #include "utils/utils.h" typedef struct nsico_content { struct content base; struct ico_collection *ico; /** ICO collection data */ } nsico_content; static const char *nsico_types[] = { "application/ico", "application/x-ico", "image/ico", "image/vnd.microsoft.icon", "image/x-icon" }; static lwc_string *nsico_mime_types[NOF_ELEMENTS(nsico_types)]; 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 = talloc_zero(0, 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) { talloc_free(result); return error; } error = nsico_create_ico_data(result); if (error != NSERROR_OK) { talloc_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[100]; /* 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 and description */ c->width = ico->ico->width; c->height = ico->ico->height; snprintf(title, sizeof(title), messages_get("ICOTitle"), c->width, c->height, size); content__set_title(c, title); c->size += (ico->ico->width * ico->ico->height * 4) + 16 + 44; /* exit as a success */ bmp = ico_find(ico->ico, 255, 255); assert(bmp); c->bitmap = bmp->bitmap; bitmap_modified(c->bitmap); 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, int x, int y, int width, int height, const struct rect *clip, float scale, colour background_colour, bool repeat_x, bool repeat_y) { nsico_content *ico = (nsico_content *) c; struct bmp_image *bmp = ico_find(ico->ico, width, height); bitmap_flags_t flags = BITMAPF_NONE; if (!bmp->decoded) if (bmp_decode(bmp) != BMP_OK) return false; c->bitmap = bmp->bitmap; if (repeat_x) flags |= BITMAPF_REPEAT_X; if (repeat_y) flags |= BITMAPF_REPEAT_Y; return plot.bitmap(x, y, width, height, c->bitmap, background_colour, flags); } 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 = talloc_zero(0, 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 content_type nsico_content_type(lwc_string *mime_type) { 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, .type = nsico_content_type, .no_share = false, }; nserror nsico_init(void) { uint32_t i; lwc_error lerror; nserror error; for (i = 0; i < NOF_ELEMENTS(nsico_mime_types); i++) { lerror = lwc_intern_string(nsico_types[i], strlen(nsico_types[i]), &nsico_mime_types[i]); if (lerror != lwc_error_ok) { error = NSERROR_NOMEM; goto error; } error = content_factory_register_handler(nsico_mime_types[i], &nsico_content_handler); if (error != NSERROR_OK) goto error; } return NSERROR_OK; error: nsico_fini(); return error; } void nsico_fini(void) { uint32_t i; for (i = 0; i < NOF_ELEMENTS(nsico_mime_types); i++) { if (nsico_mime_types[i] != NULL) lwc_string_unref(nsico_mime_types[i]); } } #endif