2010-02-02 Shinichiro Hamaji <hamaji@chromium.org>

        Reviewed by Dimitri Glazkov.

        [Chromium] Implement WebFrameImpl::pageNumberForElementById
        https://bugs.webkit.org/show_bug.cgi?id=34471

        * public/WebFrame.h:
        * src/WebFrameImpl.cpp:
        (WebKit::WebFrameImpl::pageNumberForElementById):
        * src/WebFrameImpl.h:

git-svn-id: svn://svn.chromium.org/blink/trunk@54270 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/WebKit/chromium/ChangeLog

+2010-02-02  Shinichiro Hamaji  <hamaji@chromium.org>
+
+        Reviewed by Dimitri Glazkov.
+
+        [Chromium] Implement WebFrameImpl::pageNumberForElementById
+        https://bugs.webkit.org/show_bug.cgi?id=34471
+
+        * public/WebFrame.h:
+        * src/WebFrameImpl.cpp:
+        (WebKit::WebFrameImpl::pageNumberForElementById):
+        * src/WebFrameImpl.h:
+
 2010-02-02  Yury Semikhatsky  <yurys@chromium.org>
 
         Reviewed by Pavel Feldman.

third_party/WebKit/WebKit/chromium/public/WebFrame.h

@@ -483,6 +483,13 @@ public:
     // used to support layout tests.
     virtual WebString counterValueForElementById(const WebString& id) const = 0;
 
+
+    // Returns the number of page where the specified element will be put.
+    // This method is used to support layout tests.
+    virtual int pageNumberForElementById(const WebString& id,
+                                         float pageWidthInPixels,
+                                         float pageHeightInPixels) const = 0;
+
 protected:
     ~WebFrame() { }
 };

third_party/WebKit/WebKit/chromium/src/WebFrameImpl.cpp

@@ -1518,6 +1518,21 @@ WebString WebFrameImpl::counterValueForElementById(const WebString& id) const
     return counterValueForElement(element);
 }
 
+int WebFrameImpl::pageNumberForElementById(const WebString& id,
+                                           float pageWidthInPixels,
+                                           float pageHeightInPixels) const
+{
+    if (!m_frame)
+        return -1;
+
+    Element* element = m_frame->document()->getElementById(id);
+    if (!element)
+        return -1;
+
+    FloatSize pageSize(pageWidthInPixels, pageHeightInPixels);
+    return PrintContext::pageNumberForElement(element, pageSize);
+}
+
 // WebFrameImpl public ---------------------------------------------------------
 
 PassRefPtr<WebFrameImpl> WebFrameImpl::create(WebFrameClient* client)

third_party/WebKit/WebKit/chromium/src/WebFrameImpl.h

@@ -164,6 +164,9 @@ public:
     virtual WebString contentAsMarkup() const;
     virtual WebString renderTreeAsText() const;
     virtual WebString counterValueForElementById(const WebString& id) const;
+    virtual int pageNumberForElementById(const WebString& id,
+                                         float pageWidthInPixels,
+                                         float pageHeightInPixels) const;
 
     static PassRefPtr<WebFrameImpl> create(WebFrameClient* client);
     ~WebFrameImpl();