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Diffstat (limited to 'frontends/cocoa/apple_image.m')
| -rw-r--r-- | frontends/cocoa/apple_image.m | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/frontends/cocoa/apple_image.m b/frontends/cocoa/apple_image.m new file mode 100644 index 000000000..596340965 --- /dev/null +++ b/frontends/cocoa/apple_image.m @@ -0,0 +1,257 @@ +/* + * Copyright 2011 Sven Weidauer <sven.weidauer@gmail.com> + * + * 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/>. + */ + +#ifdef WITH_APPLE_IMAGE + +#import "cocoa/apple_image.h" + +#include "utils/config.h" +#include "utils/utils.h" +#include "netsurf/bitmap.h" +#include "netsurf/plotters.h" +#include "netsurf/content.h" +#include "content/llcache.h" +#include "content/content_protected.h" + +#import "cocoa/schedule.h" +#import "cocoa/bitmap.h" + +typedef struct apple_image_content { + struct content base; + + struct bitmap *bitmap; /**< Created NetSurf bitmap */ + + NSUInteger frames; + NSUInteger currentFrame; + int *frameTimes; +} apple_image_content; + +static void *apple_image_get_internal(const struct content *c, void *context) +{ + apple_image_content *ai_c = (apple_image_content *)c; + return ai_c->bitmap; +} + +static nserror apple_image_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) +{ + apple_image_content *ai; + nserror error; + + ai = calloc(1, sizeof(apple_image_content)); + if (ai == NULL) + return NSERROR_NOMEM; + + error = content__init(&ai->base, handler, imime_type, params, + llcache, fallback_charset, quirks); + if (error != NSERROR_OK) { + free(ai); + return error; + } + + *c = (struct content *)ai; + + return NSERROR_OK; +} + +static void animate_image_cb(void *ptr) +{ + struct apple_image_content *ai = ptr; + ++ai->currentFrame; + if (ai->currentFrame >= ai->frames) + ai->currentFrame = 0; + + [(__bridge NSBitmapImageRep *)ai->bitmap setProperty:NSImageCurrentFrame withValue:[NSNumber numberWithUnsignedInteger:ai->currentFrame]]; + cocoa_bitmap_modified(ai->bitmap); + + union content_msg_data data; + data.redraw.full_redraw = true; + data.redraw.x = data.redraw.object_x = 0; + data.redraw.y = data.redraw.object_y = 0; + data.redraw.width = data.redraw.object_width = ai->base.width; + data.redraw.height = data.redraw.object_height = ai->base.height; + data.redraw.object = &ai->base; + content_broadcast(&ai->base, CONTENT_MSG_REDRAW, &data); + + cocoa_schedule(ai->frameTimes[ai->currentFrame], animate_image_cb, ai); +} + +/** + * Convert a CONTENT_APPLE_IMAGE for display. + */ +static bool apple_image_convert(struct content *c) +{ + apple_image_content *ai_c = (apple_image_content *)c; + unsigned long size; + const char *bytes = content__get_source_data(c, &size); + + NSData *data = [NSData dataWithBytesNoCopy:(char *)bytes length:size freeWhenDone:NO]; + NSBitmapImageRep *image = [NSBitmapImageRep imageRepWithData:data]; + + if (image == nil) { + union content_msg_data msg_data; + msg_data.error = "cannot decode image"; + content_broadcast(c, CONTENT_MSG_ERROR, &msg_data); + return false; + } + + c->width = [image pixelsWide]; + c->height = [image pixelsHigh]; + ai_c->bitmap = (__bridge_retained void *)image; + + NSString *url = [NSString stringWithUTF8String:nsurl_access(llcache_handle_get_url(content_get_llcache_handle(c)))]; + NSString *title = [NSString stringWithFormat:@"%@ (%dx%d)", [url lastPathComponent], c->width, c->height]; + content__set_title(c, [title UTF8String]); + + content_set_ready(c); + content_set_done(c); + content_set_status(c, ""); + + struct apple_image_content *ai = (struct apple_image_content *)c; + NSUInteger frames = [[image valueForProperty:NSImageFrameCount] unsignedIntegerValue]; + if (frames > 1) { + ai->frames = frames; + ai->currentFrame = 0; + ai->frameTimes = calloc(ai->frames, sizeof(int)); + for (NSUInteger i = 0; i < frames; i++) { + [image setProperty:NSImageCurrentFrame withValue:[NSNumber numberWithUnsignedInteger:i]]; + ai->frameTimes[i] = 1000 * [[image valueForProperty:NSImageCurrentFrameDuration] floatValue]; + } + [image setProperty:NSImageCurrentFrame withValue:[NSNumber numberWithUnsignedInteger:0]]; + cocoa_schedule(ai->frameTimes[0], animate_image_cb, ai); + } + + return true; +} + +static void apple_image_destroy(struct content *c) +{ + apple_image_content *ai_c = (apple_image_content *)c; + + id bitmap = (__bridge_transfer id)ai_c->bitmap; + bitmap = nil; + + ai_c->bitmap = NULL; + cocoa_schedule(-1, animate_image_cb, c); +} + +static nserror apple_image_clone(const struct content *old, struct content **newc) +{ + apple_image_content *ai; + apple_image_content *ai_old = (apple_image_content *)old; + nserror error; + + ai = calloc(1, sizeof(apple_image_content)); + if (ai == NULL) + return NSERROR_NOMEM; + + error = content__clone(old, &ai->base); + if (error != NSERROR_OK) { + content_destroy(&ai->base); + return error; + } + + if (old->status == CONTENT_STATUS_READY || old->status == CONTENT_STATUS_DONE) { + ai->base.width = old->width; + ai->base.height = old->height; + ai->bitmap = (__bridge_retained void *)((__bridge id)ai_old->bitmap); + } + + *newc = (struct content *)ai; + + return NSERROR_OK; +} + +static content_type apple_image_content_type(void) +{ + return CONTENT_IMAGE; +} + +/** + * Redraw a CONTENT_APPLE_IMAGE with appropriate tiling. + */ +static bool apple_image_redraw(struct content *c, struct content_redraw_data *data, + const struct rect *clip, const struct redraw_context *ctx) +{ + apple_image_content *ai_c = (apple_image_content *)c; + bitmap_flags_t flags = BITMAPF_NONE; + + if (data->repeat_x) + flags |= BITMAPF_REPEAT_X; + if (data->repeat_y) + flags |= BITMAPF_REPEAT_Y; + + return ctx->plot->bitmap(ctx, ai_c->bitmap, data->x, data->y, data->width, data->height, + data->background_colour, flags) == NSERROR_OK; +} + +static const content_handler apple_image_content_handler = { + .create = apple_image_create, + .data_complete = apple_image_convert, + .destroy = apple_image_destroy, + .redraw = apple_image_redraw, + .clone = apple_image_clone, + .get_internal = apple_image_get_internal, + .type = apple_image_content_type, + .no_share = false +}; + +static nserror register_for_type(NSString *mime) +{ + const char *type = [mime UTF8String]; +/* nsgif has priority since it supports animated GIF */ +#ifdef WITH_GIF + if (strcmp(type, "image/gif") == 0) + return NSERROR_OK; +#endif + + nserror error = content_factory_register_handler(type, &apple_image_content_handler); + if (error != NSERROR_OK) + return error; + + return NSERROR_OK; +} + +/* exported interface documented in cocoa/apple_image.h */ +nserror apple_image_init(void) +{ + NSArray *utis = [NSBitmapImageRep imageTypes]; + for (NSString *uti in utis) { + NSDictionary *declaration = (__bridge_transfer NSDictionary *)UTTypeCopyDeclaration((__bridge CFStringRef)uti); + id mimeTypes = [[declaration objectForKey:(NSString *)kUTTypeTagSpecificationKey] objectForKey:(NSString *)kUTTagClassMIMEType]; + + if (mimeTypes == nil) + continue; + + if (![mimeTypes isKindOfClass:[NSArray class]]) { + mimeTypes = [NSArray arrayWithObject:mimeTypes]; + } + + for (NSString *mime in mimeTypes) { + nserror error = register_for_type(mime); + if (error != NSERROR_OK) + return error; + } + } + + return NSERROR_OK; +} + +#endif /* WITH_APPLE_IMAGE */ |