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922ea790b8
I had to add back document.createText() since new Text() does not work in the new world yet. LayoutRoot is a new Dart-exposed class which holds the Frame and all associated machinery, sufficient to trigger a restyle and layout of the subtree. This is all kinda hacky and I'm sure likely to cause many crashes if folks call random methods on these disconnected trees. But this makes it at least possible to paint text for now and we can improve this in the coming days. This really should have Adam's review. It's hugely hacky but I'd like to negotiate out with him the timeline on which we should fix some of these hacks. R=ianh@google.com TBR=abarth@chromium.org Review URL: https://codereview.chromium.org/1148253003
86 lines
3.4 KiB
C++
86 lines
3.4 KiB
C++
/*
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* Copyright (C) 2013 Google Inc. 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
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (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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#ifndef SKY_ENGINE_CORE_FRAME_FRAMEHOST_H_
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#define SKY_ENGINE_CORE_FRAME_FRAMEHOST_H_
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#include "sky/engine/platform/heap/Handle.h"
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#include "sky/engine/wtf/FastAllocBase.h"
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#include "sky/engine/wtf/Noncopyable.h"
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#include "sky/engine/wtf/OwnPtr.h"
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#include "sky/engine/wtf/PassOwnPtr.h"
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namespace blink {
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class Page;
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class ServiceProvider;
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class Settings;
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// FrameHost is the set of global data shared between multiple frames
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// and is provided by the embedder to each frame when created.
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// FrameHost currently corresponds to the Page object in core/page
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// however the concept of a Page is moving up out of Blink.
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// In an out-of-process iframe world, a single Page may have
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// multiple frames in different process, thus Page becomes a
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// browser-level concept and Blink core/ only knows about its LocalFrame (and FrameHost).
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// Separating Page from the rest of core/ through this indirection
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// allows us to slowly refactor Page without breaking the rest of core.
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class FrameHost final {
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WTF_MAKE_NONCOPYABLE(FrameHost); WTF_MAKE_FAST_ALLOCATED;
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public:
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static PassOwnPtr<FrameHost> create(Page&, ServiceProvider*);
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static PassOwnPtr<FrameHost> createDummy(Settings*);
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~FrameHost();
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// Careful: This function will eventually be removed.
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Page& page() const { return *m_page; }
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Settings& settings() const;
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ServiceProvider* services() const { return m_services; }
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// Corresponds to pixel density of the device where this Page is
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// being displayed. In multi-monitor setups this can vary between pages.
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// This value does not account for Page zoom, use LocalFrame::devicePixelRatio instead.
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float deviceScaleFactor() const;
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private:
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FrameHost(Page&, ServiceProvider*);
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FrameHost(Settings*);
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Page* m_page;
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ServiceProvider* m_services;
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Settings* m_settings;
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};
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}
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#endif // SKY_ENGINE_CORE_FRAME_FRAMEHOST_H_
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