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95d70addd8
Since more DOM nodes are going to want to load images (<object>, ...) this patch splits out the image loading logic into an ImageLoader class and then HTMLImageElement simply has an ImageLoader. LayoutImage is then given a const ImageLoader& at construction and can then provide layout and rendering for many kinds of DOM nodes.
101 lines
3.2 KiB
C++
101 lines
3.2 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/ImageDecoder.h>
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#include <LibWeb/Loader/ImageLoader.h>
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#include <LibWeb/Loader/ResourceLoader.h>
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namespace Web {
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ImageLoader::ImageLoader()
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{
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}
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void ImageLoader::load(const URL& url)
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{
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LoadRequest request;
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request.set_url(url);
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set_resource(ResourceLoader::the().load_resource(Resource::Type::Image, request));
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}
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void ImageLoader::set_visible_in_viewport(bool visible_in_viewport)
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{
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if (m_visible_in_viewport == visible_in_viewport)
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return;
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m_visible_in_viewport = visible_in_viewport;
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// FIXME: Don't update volatility every time. If we're here, we're probably scanning through
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// the whole document, updating "is visible in viewport" flags, and this could lead
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// to the same bitmap being marked volatile back and forth unnecessarily.
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if (resource())
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resource()->update_volatility();
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}
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void ImageLoader::resource_did_load()
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{
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ASSERT(resource());
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if (!resource()->mime_type().starts_with("image/")) {
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if (on_fail)
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on_fail();
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return;
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}
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if (!resource()->has_encoded_data()) {
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dbg() << "ImageLoader: Resource did load, no encoded data. URL: " << resource()->url();
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} else {
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dbg() << "ImageLoader: Resource did load, has encoded data. URL: " << resource()->url();
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}
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m_decoder = resource()->ensure_decoder();
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if (on_load)
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on_load();
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}
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void ImageLoader::resource_did_fail()
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{
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dbg() << "ImageLoader: Resource did fail. URL: " << resource()->url();
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if (on_fail)
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on_fail();
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}
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void ImageLoader::resource_did_replace_decoder()
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{
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m_decoder = resource()->ensure_decoder();
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}
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const Gfx::Bitmap* ImageLoader::bitmap() const
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{
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return m_decoder ? m_decoder->bitmap() : nullptr;
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}
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const Gfx::ImageDecoder* ImageLoader::image_decoder() const
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{
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return m_decoder;
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}
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}
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