| /* |
| * Copyright (C) 2016 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "core/frame/DOMVisualViewport.h" |
| |
| #include "core/dom/Document.h" |
| #include "core/dom/Element.h" |
| #include "core/frame/FrameHost.h" |
| #include "core/frame/LocalDOMWindow.h" |
| #include "core/frame/LocalFrame.h" |
| #include "core/frame/VisualViewport.h" |
| #include "core/page/Page.h" |
| #include "core/style/ComputedStyle.h" |
| |
| namespace blink { |
| |
| DOMVisualViewport::DOMVisualViewport(LocalDOMWindow* window) |
| : m_window(window) |
| { |
| } |
| |
| DOMVisualViewport::~DOMVisualViewport() |
| { |
| } |
| |
| DEFINE_TRACE(DOMVisualViewport) |
| { |
| visitor->trace(m_window); |
| EventTargetWithInlineData::trace(visitor); |
| } |
| |
| const AtomicString& DOMVisualViewport::interfaceName() const |
| { |
| return EventTargetNames::DOMVisualViewport; |
| } |
| |
| ExecutionContext* DOMVisualViewport::getExecutionContext() const |
| { |
| return m_window->getExecutionContext(); |
| } |
| |
| double DOMVisualViewport::scrollLeft() |
| { |
| LocalFrame* frame = m_window->frame(); |
| if (!frame || !frame->isMainFrame()) |
| return 0; |
| |
| if (FrameHost* host = frame->host()) |
| return host->visualViewport().scrollLeft(); |
| |
| return 0; |
| } |
| |
| double DOMVisualViewport::scrollTop() |
| { |
| LocalFrame* frame = m_window->frame(); |
| if (!frame || !frame->isMainFrame()) |
| return 0; |
| |
| if (FrameHost* host = frame->host()) |
| return host->visualViewport().scrollTop(); |
| |
| return 0; |
| } |
| |
| double DOMVisualViewport::clientWidth() |
| { |
| LocalFrame* frame = m_window->frame(); |
| if (!frame) |
| return 0; |
| |
| if (!frame->isMainFrame()) { |
| FloatSize viewportSize = m_window->getViewportSize(ExcludeScrollbars); |
| return adjustForAbsoluteZoom(expandedIntSize(viewportSize).width(), frame->pageZoomFactor()); |
| } |
| |
| if (FrameHost* host = frame->host()) |
| return host->visualViewport().clientWidth(); |
| |
| return 0; |
| } |
| |
| double DOMVisualViewport::clientHeight() |
| { |
| LocalFrame* frame = m_window->frame(); |
| if (!frame) |
| return 0; |
| |
| if (!frame->isMainFrame()) { |
| FloatSize viewportSize = m_window->getViewportSize(ExcludeScrollbars); |
| return adjustForAbsoluteZoom(expandedIntSize(viewportSize).height(), frame->pageZoomFactor()); |
| } |
| |
| if (FrameHost* host = frame->host()) |
| return host->visualViewport().clientHeight(); |
| |
| return 0; |
| } |
| |
| double DOMVisualViewport::scale() |
| { |
| LocalFrame* frame = m_window->frame(); |
| if (!frame) |
| return 0; |
| |
| if (!frame->isMainFrame()) |
| return 1; |
| |
| if (FrameHost* host = m_window->frame()->host()) |
| return host->visualViewport().pageScale(); |
| |
| return 0; |
| } |
| |
| } // namespace blink |