Implement <select> Popup Menu using PagePopup

Source/web/PopupMenuImpl.cpp

+/*
+ * Copyright (C) 2012 Google Inc. All rights reserved.

[tkent, 2014/12/15 09:26:04]

I don't think this file is a copy of something.  Please use the 3-line header.

[keishi, 2014/12/16 03:53:24]

Done.

+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  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 APPLE AND ITS CONTRIBUTORS "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 APPLE OR ITS 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 "config.h"
+#include "web/PopupMenuImpl.h"
+
+#include "core/HTMLNames.h"
+#include "core/css/CSSFontSelector.h"
+#include "core/dom/StyleEngine.h"
+#include "core/frame/FrameView.h"
+#include "core/html/HTMLHRElement.h"
+#include "core/html/HTMLOptGroupElement.h"
+#include "core/html/HTMLOptionElement.h"
+#include "core/page/PagePopup.h"
+#include "platform/geometry/IntRect.h"
+#include "public/platform/Platform.h"
+#include "public/web/WebColorChooser.h"
+#include "web/ChromeClientImpl.h"
+#include "web/WebViewImpl.h"
+
+namespace blink {
+
+class PopupMenuCSSFontSelector : public CSSFontSelector {
+public:
+    static PassRefPtr<PopupMenuCSSFontSelector> create(Document* document, CSSFontSelector* ownerFontSelector)

[tkent, 2014/12/15 09:26:04]

PassRefPtrWillBeRawPtr

[keishi, 2014/12/16 03:53:24]

Done.

+    {
+        return adoptRefWillBeNoop(new PopupMenuCSSFontSelector(document, ownerFontSelector));
+    }
+
+    // We don't override willUseFontData() for now because the old PopupListBox
+    // only worked with fonts loaded when opening the popup.
+    virtual PassRefPtr<FontData> getFontData(const FontDescription&, const AtomicString&) override;
+
+private:
+    PopupMenuCSSFontSelector(Document* document, CSSFontSelector* ownerFontSelector)
+        : CSSFontSelector(document)
+        , m_ownerFontSelector(ownerFontSelector) { }
+    RefPtrWillBeMember<CSSFontSelector> m_ownerFontSelector;
+};
+
+PassRefPtr<FontData> PopupMenuCSSFontSelector::getFontData(const FontDescription& description, const AtomicString& name)
+{
+    return m_ownerFontSelector->getFontData(description, name);
+}
+
+PassRefPtrWillBeRawPtr<PopupMenuImpl> PopupMenuImpl::create(ChromeClientImpl* chromeClient, PopupMenuClient* client)
+{
+    return adoptRefWillBeNoop(new PopupMenuImpl(chromeClient, client));
+}
+
+PopupMenuImpl::PopupMenuImpl(ChromeClientImpl* chromeClient, PopupMenuClient* client)
+    : m_chromeClient(chromeClient)
+    , m_client(client)
+    , m_popup(0)

[tkent, 2014/12/15 09:26:04]

0 -> nullptr

[keishi, 2014/12/16 03:53:24]

Done.

+{
+}
+
+PopupMenuImpl::~PopupMenuImpl()
+{
+    closePopup();
+}
+
+IntSize PopupMenuImpl::contentSize()
+{
+    return IntSize(0, 0);

[tkent, 2014/12/15 09:26:04]

IntSize(0, 0) -> IntSize()

[keishi, 2014/12/16 03:53:24]

Done.

+}
+
+void PopupMenuImpl::writeDocument(SharedBuffer* data)
+{
+    IntRect anchorRectInScreen = m_chromeClient->rootViewToScreen(m_client->elementRectRelativeToRootView());
+
+    PagePopupClient::addString("<!DOCTYPE html><head><meta charset='UTF-8'><style>\n", data);
+    data->append(Platform::current()->loadResource("pickerCommon.css"));
+    data->append(Platform::current()->loadResource("listPicker.css"));
+    PagePopupClient::addString("</style></head><body><div id=main>Loading...</div><script>\n"
+        "window.dialogArguments = {\n", data);
+    addProperty("selectedIndex", m_client->selectedIndex(), data);
+    PagePopupClient::addString("children: [\n", data);
+    for (HTMLElement& child : Traversal<HTMLElement>::childrenOf(ownerElement())) {
+        if (isHTMLOptionElement(child))
+            addOption(toHTMLOptionElement(child), data);
+        if (isHTMLOptGroupElement(child))
+            addOptGroup(toHTMLOptGroupElement(child), data);
+        if (isHTMLHRElement(child))
+            addSeparator(toHTMLHRElement(child), data);
+    }
+    PagePopupClient::addString("],\n", data);
+    addProperty("anchorRectInScreen", anchorRectInScreen, data);
+    PagePopupClient::addString("};\n", data);
+    data->append(Platform::current()->loadResource("pickerCommon.js"));
+    data->append(Platform::current()->loadResource("listPicker.js"));
+    PagePopupClient::addString("</script></body>\n", data);
+}
+
+const char* fontWeightToString(FontWeight weight)
+{
+    switch (weight) {
+    case FontWeight100:
+        return "100";
+    case FontWeight200:
+        return "200";
+    case FontWeight300:
+        return "300";
+    case FontWeight400:
+        return "400";
+    case FontWeight500:
+        return "500";
+    case FontWeight600:
+        return "600";
+    case FontWeight700:
+        return "700";
+    case FontWeight800:
+        return "800";
+    case FontWeight900:
+        return "900";
+    }
+}
+
+void PopupMenuImpl::addElementStyle(HTMLElement& element, SharedBuffer* data)
+{
+    RenderStyle* style = m_client->renderStyleForItem(element);
+    ASSERT(style);
+    PagePopupClient::addString("style: {\n", data);
+    addProperty("color", style->visitedDependentColor(CSSPropertyColor).serialized(), data);
+    addProperty("backgroundColor", style->visitedDependentColor(CSSPropertyBackgroundColor).serialized(), data);
+    const FontDescription& fontDescription = style->font().fontDescription();
+    addProperty("fontSize", fontDescription.computedPixelSize(), data);
+    addProperty("fontWeight", String(fontWeightToString(fontDescription.weight())), data);
+    PagePopupClient::addString("fontFamily: [\n", data);
+    for (const FontFamily* f = &fontDescription.family(); f; f = f->next()) {
+        addJavaScriptString(f->family().string(), data);
+        if (f->next())
+            PagePopupClient::addString(",\n", data);
+    }
+    PagePopupClient::addString("],\n", data);
+    addProperty("visibility", String(style->visibility() == HIDDEN ? "hidden" : "visible"), data);
+    addProperty("display", String(style->display() == NONE ? "none" : "block"), data);
+    addProperty("direction", String(style->direction() == RTL ? "rtl" : "ltr"), data);
+    addProperty("unicodeBidi", String(isOverride(style->unicodeBidi()) ? "bidi-override" : "normal"), data);
+    PagePopupClient::addString("},\n", data);
+}
+
+void PopupMenuImpl::addOption(HTMLOptionElement& element, SharedBuffer* data)
+{
+    PagePopupClient::addString("{\n", data);
+    PagePopupClient::addString("type: \"option\",\n", data);
+    addProperty("label", element.text(), data);
+    addProperty("title", element.title(), data);
+    addProperty("value", element.listIndex(), data);
+    addProperty("ariaLabel", element.fastGetAttribute(HTMLNames::aria_labelAttr), data);
+    addProperty("disabled", element.isDisabledFormControl(), data);
+    addElementStyle(element, data);
+    PagePopupClient::addString("},\n", data);
+}
+
+void PopupMenuImpl::addOptGroup(HTMLOptGroupElement& element, SharedBuffer* data)
+{
+    PagePopupClient::addString("{\n", data);
+    PagePopupClient::addString("type: \"optgroup\",\n", data);
+    addProperty("label", element.groupLabelText(), data);
+    addProperty("title", element.title(), data);
+    addProperty("ariaLabel", element.fastGetAttribute(HTMLNames::aria_labelAttr), data);
+    addProperty("disabled", element.isDisabledFormControl(), data);
+    addElementStyle(element, data);
+    PagePopupClient::addString("children: [", data);
+    for (HTMLElement& child : Traversal<HTMLElement>::childrenOf(element)) {
+        if (isHTMLOptionElement(child))
+            addOption(toHTMLOptionElement(child), data);
+        if (isHTMLOptGroupElement(child))
+            addOptGroup(toHTMLOptGroupElement(child), data);
+        if (isHTMLHRElement(child))
+            addSeparator(toHTMLHRElement(child), data);
+    }
+    PagePopupClient::addString("],\n", data);
+    PagePopupClient::addString("},\n", data);
+}
+
+void PopupMenuImpl::addSeparator(HTMLHRElement& element, SharedBuffer* data)
+{
+    PagePopupClient::addString("{\n", data);
+    PagePopupClient::addString("type: \"separator\",\n", data);
+    addProperty("title", element.title(), data);
+    addProperty("ariaLabel", element.fastGetAttribute(HTMLNames::aria_labelAttr), data);
+    addProperty("disabled", element.isDisabledFormControl(), data);
+    addElementStyle(element, data);
+    PagePopupClient::addString("},\n", data);
+}
+
+void PopupMenuImpl::didWriteDocument(Document* document)
+{
+    Document& ownerDocument = ownerElement().document();
+    document->styleEngine()->setFontSelector(PopupMenuCSSFontSelector::create(document, ownerDocument.styleEngine()->fontSelector()));
+}
+
+void PopupMenuImpl::setValueAndClosePopup(int numValue, const String& stringValue)
+{
+    ASSERT(m_popup);
+    ASSERT(m_client);
+    bool success;
+    int listIndex = stringValue.toInt(&success);
+    ASSERT(success);
+    m_client->selectionChanged(listIndex);
+    m_client->valueChanged(listIndex);
+    closePopup();
+}
+
+void PopupMenuImpl::setValue(const String& value)
+{
+    ASSERT(m_client);
+    bool success;
+    int listIndex = value.toInt(&success);
+    ASSERT(success);
+    m_client->setTextFromItem(listIndex);
+    // FIXME: Wrong menu list text when switching from keyboard to mouse. We need something like PopupListBox::m_originalIndex.
+}
+
+void PopupMenuImpl::didClosePopup()
+{
+    m_popup = 0;

[tkent, 2014/12/15 09:26:04]

0 -> nullptr

[keishi, 2014/12/16 03:53:24]

Done.

+    m_client->popupDidHide();
+}
+
+Element& PopupMenuImpl::ownerElement()
+{
+    return m_client->ownerElement();
+}
+
+void PopupMenuImpl::closePopup()
+{
+    if (m_popup)
+        m_chromeClient->closePagePopup(m_popup);
+}
+
+void PopupMenuImpl::trace(Visitor* visitor)

[tkent, 2014/12/15 09:26:04]

This function looks unnecessary.

[keishi, 2014/12/16 03:53:24]

Done.

+{
+    PopupMenu::trace(visitor);
+}
+
+void PopupMenuImpl::dispose()
+{
+    closePopup();
+}
+
+void PopupMenuImpl::show(const FloatQuad& /*controlPosition*/, const IntSize& /*controlSize*/, int /*index*/)
+{
+    ASSERT(!m_popup);
+    m_popup = m_chromeClient->openPagePopup(this, m_client->elementRectRelativeToRootView());
+}
+
+void PopupMenuImpl::hide()
+{
+    if (m_popup)
+        m_chromeClient->closePagePopup(m_popup);
+}
+
+void PopupMenuImpl::updateFromElement()
+{
+    RefPtr<SharedBuffer> data = SharedBuffer::create();
+    PagePopupClient::addString("window.updateData = {\n", data.get());
+    PagePopupClient::addString("type: \"update\",\n", data.get());
+    PagePopupClient::addString("children: [", data.get());
+    for (HTMLElement& child : Traversal<HTMLElement>::childrenOf(ownerElement())) {
+        if (isHTMLOptionElement(child))
+            addOption(toHTMLOptionElement(child), data.get());
+        if (isHTMLOptGroupElement(child))
+            addOptGroup(toHTMLOptGroupElement(child), data.get());
+        if (isHTMLHRElement(child))
+            addSeparator(toHTMLHRElement(child), data.get());
+    }
+    PagePopupClient::addString("],\n", data.get());
+    PagePopupClient::addString("}\n", data.get());
+    m_popup->postMessage(String(data->data(), data->size()));
+}
+
+
+void PopupMenuImpl::disconnectClient()
+{
+    m_client = 0;

[tkent, 2014/12/15 09:26:04]

0 -> nullptr

[keishi, 2014/12/16 03:53:24]

Done.

+#if ENABLE(OILPAN)
+    // Cannot be done during finalization, so instead done when the
+    // render object is destroyed and disconnected.
+    //
+    // FIXME: do this always, regardless of ENABLE(OILPAN).
+    dispose();
+#endif
+}
+
+} // namespace blink