Index: chrome/renderer/print_web_view_helper.cc |
diff --git a/chrome/renderer/print_web_view_helper.cc b/chrome/renderer/print_web_view_helper.cc |
index 36a67c407cee2e3390b8aa1d425454df4e85fd14..81114a22f4af7361d00745b746e86f537342f679 100644 |
--- a/chrome/renderer/print_web_view_helper.cc |
+++ b/chrome/renderer/print_web_view_helper.cc |
@@ -4,12 +4,17 @@ |
#include "chrome/renderer/print_web_view_helper.h" |
+#include <algorithm> |
+#include <cmath> |
#include <string> |
#include "base/command_line.h" |
+#include "base/i18n/time_formatting.h" |
#include "base/logging.h" |
#include "base/metrics/histogram.h" |
#include "base/process_util.h" |
+#include "base/string_number_conversions.h" |
+#include "base/time.h" |
#include "base/utf_string_conversions.h" |
#include "chrome/common/chrome_switches.h" |
#include "chrome/common/print_messages.h" |
@@ -32,13 +37,22 @@ |
#include "third_party/WebKit/Source/WebKit/chromium/public/WebURLResponse.h" |
#include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h" |
#include "ui/base/l10n/l10n_util.h" |
+#include "ui/base/text/text_elider.h" |
kmadhusu
2011/07/26 20:27:50
can this header file go inside the #if defined(USE
Aayush Kumar
2011/07/28 17:28:41
This is not skia specific and it will be used by C
|
#if defined(OS_POSIX) |
#include "content/common/view_messages.h" |
#endif |
+#if defined(USE_SKIA) |
+#include "skia/ext/vector_canvas.h" |
+#include "skia/ext/vector_platform_device_skia.h" |
+#include "third_party/skia/include/core/SkTypeface.h" |
+#endif |
+ |
+using base::Time; |
using printing::ConvertPixelsToPoint; |
using printing::ConvertPixelsToPointDouble; |
+using printing::ConvertPointsToPixelDouble; |
using printing::ConvertUnit; |
using printing::ConvertUnitDouble; |
using WebKit::WebConsoleMessage; |
@@ -88,12 +102,215 @@ bool PrintMsg_Print_Params_IsEqual( |
oldParams.params.supports_alpha_blend == |
newParams.params.supports_alpha_blend && |
oldParams.pages.size() == newParams.pages.size() && |
+ oldParams.params.display_header_footer == |
+ newParams.params.display_header_footer && |
std::equal(oldParams.pages.begin(), oldParams.pages.end(), |
newParams.pages.begin()); |
} |
+#if defined(USE_SKIA) |
+// Splits the horizontal width equally into segments with an interstice |
+// between each segment. Returns the width of this segment. |
+SkScalar GetSegmentWidth(const PageSizeMargins& page_layout) { |
+ // Interstice is left at both ends of the page as well as between |
+ // each region, so 1 is added. |
+ return (page_layout.margin_left + |
+ page_layout.content_width + |
+ page_layout.margin_right - |
+ (printing::kSettingHeaderFooterHorizontalRegions + 1) * |
+ printing::kSettingHeaderFooterInterstice) / |
+ printing::kSettingHeaderFooterHorizontalRegions; |
+} |
+ |
+// Given a text, the positions, and the paint object, this method gets the |
+// coordinates and prints the text at those coordinates on the canvas. |
+void PrintHeaderFooterText( |
+ string16 text, |
+ SkPaint paint, |
+ skia::VectorCanvas& canvas, |
+ printing::HorizontalHeaderFooterPosition horizontal_position, |
+ printing::VerticalHeaderFooterPosition vertical_position, |
+ float webkit_scale_factor, |
+ const PageSizeMargins& page_layout, |
+ SkScalar max_text_width, |
+ gfx::Font font, |
+ SkScalar height_to_baseline) { |
+ text = ui::ElideText(text, font, ConvertPointsToPixelDouble(max_text_width), |
+ false); |
+ |
+ SkPoint text_location; |
+ size_t text_byte_length = text.length() * sizeof(char16); |
+ // Get the (x, y) coordinate from where printing of the current text should |
+ // start depending on the horizontal alignment (LEFT, RIGHT, CENTER) and |
+ // vertical alignment (TOP, BOTTOM). |
+ SkScalar text_width_in_points = paint.measureText(text.c_str(), |
+ text_byte_length); |
+ SkScalar x = 0; |
+ switch (horizontal_position) { |
+ case printing::LEFT: { |
+ x = -page_layout.margin_left + |
kmadhusu
2011/07/26 20:27:50
Can you rewrite this statement as follows:
x = pr
Aayush Kumar
2011/07/28 17:28:41
Done.
|
+ printing::kSettingHeaderFooterInterstice; |
+ break; |
+ } |
+ case printing::RIGHT: { |
+ x = (page_layout.content_width + page_layout.margin_right - |
kmadhusu
2011/07/26 20:27:50
nit: This statement does not require paranthesis s
Aayush Kumar
2011/07/28 17:28:41
Done.
|
+ (printing::kSettingHeaderFooterInterstice + text_width_in_points)); |
+ break; |
+ } |
+ case printing::CENTER: { |
+ SkScalar available_width = GetSegmentWidth(page_layout); |
+ x = available_width - page_layout.margin_left + |
+ (available_width - text_width_in_points) / 2; |
+ break; |
+ } |
+ default: { |
+ NOTREACHED(); |
+ } |
+ } |
+ |
+ SkScalar y = 0; |
+ switch (vertical_position) { |
+ case printing::TOP: { |
+ y = -page_layout.margin_top - height_to_baseline + |
+ printing::kSettingHeaderFooterInterstice; |
kmadhusu
2011/07/26 20:27:50
How about:
y = printing::kSettingHeaderFooterInte
Aayush Kumar
2011/07/28 17:28:41
Done.
|
+ break; |
+ } |
+ case printing::BOTTOM: { |
+ y = page_layout.margin_bottom + page_layout.content_height - |
+ printing::kSettingHeaderFooterInterstice - height_to_baseline; |
+ break; |
+ } |
+ default: { |
+ NOTREACHED(); |
+ } |
+ } |
+ |
+ text_location.set(x / webkit_scale_factor, y / webkit_scale_factor); |
+ paint.setTextSize(paint.getTextSize() / webkit_scale_factor); |
+ canvas.drawText(text.c_str(), text_byte_length, text_location.x(), |
+ text_location.y(), paint); |
kmadhusu
2011/07/26 20:27:50
style nit: Fix the indentation
Aayush Kumar
2011/07/28 17:28:41
Done.
|
+} |
+#endif // USE_SKIA |
} // namespace |
+#if defined(USE_SKIA) |
+void PrintHeaderAndFooter(SkDevice* device, |
+ skia::VectorCanvas& canvas, |
+ int page_number, |
+ int total_pages, |
+ float webkit_scale_factor, |
+ const PageSizeMargins& page_layout, |
+ const DictionaryValue* header_footer_info) { |
kmadhusu
2011/07/26 20:27:50
Can you pass header_footer_info as a "const Dictio
Aayush Kumar
2011/07/28 17:28:41
Done.
|
+ // Set the drawing area to draw in the margins. |
+ static_cast<skia::VectorPlatformDeviceSkia*>(device)->setDrawingArea( |
+ SkPDFDevice::kMargin_DrawingArea); |
+ |
+ // Setting up styles for the headers and footers text. |
+ SkPaint paint; |
+ paint.setColor(SK_ColorBLACK); |
+ paint.setTextEncoding(SkPaint::kUTF16_TextEncoding); |
+ paint.setTextSize(printing::kSettingHeaderFooterFontSize); |
+ gfx::Font font(UTF8ToUTF16(printing::kSettingHeaderFooterFontName), |
+ ceil(ConvertPointsToPixelDouble( |
+ printing::kSettingHeaderFooterFontSize))); |
+ paint.setTypeface(SkTypeface::CreateFromName( |
+ UTF16ToUTF8(font.GetFontName()).c_str(), SkTypeface::kNormal)); |
+ |
+ // Ensure we have enough space to print above and below the page to print |
+ // headers. |
+ string16 date = base::TimeFormatShortDateNumeric(Time::Now()); |
+ string16 title; |
+ if (!header_footer_info->GetString(printing::kSettingHeaderFooterTitle, |
+ &title)) { |
+ NOTREACHED(); |
+ } |
+ |
+ SkRect header_bounds; |
+ string16 header_text = date + title; |
+ paint.measureText(header_text.c_str(), header_text.length() * sizeof(char16), |
+ &header_bounds, 0); |
+ |
+ SkScalar text_height = |
+ printing::kSettingHeaderFooterInterstice + header_bounds.height(); |
+ |
+ if (text_height > page_layout.margin_top) |
+ return; |
+ |
+ // Ensure we have enough space to print above and below the page to print |
+ // footers. |
+ string16 page_of_total_pages = base::IntToString16(page_number) + |
+ UTF8ToUTF16("/") + |
+ base::IntToString16(total_pages); |
+ std::string url; |
+ if (!header_footer_info->GetString(printing::kSettingHeaderFooterURL, |
+ &url)) { |
+ NOTREACHED(); |
+ } |
+ |
+ SkRect footer_bounds; |
+ string16 footer_text = page_of_total_pages + UTF8ToUTF16(url); |
+ paint.measureText(footer_text.c_str(), footer_text.length() * sizeof(char16), |
+ &footer_bounds, 0); |
+ |
+ text_height = |
+ printing::kSettingHeaderFooterInterstice + footer_bounds.height(); |
+ |
+ if (text_height > page_layout.margin_bottom) |
+ return; |
+ |
+ SkScalar segment_width = GetSegmentWidth(page_layout); |
+ // Print the Date. |
+ PrintHeaderFooterText(date, paint, canvas, printing::LEFT, printing::TOP, |
+ webkit_scale_factor, page_layout, segment_width, |
+ font, header_bounds.top()); |
+ |
+ // Print the title. |
+ SkScalar date_width = paint.measureText(date.c_str(), |
+ date.length() * sizeof(char16)); |
+ // Calculate the available title width. If the date string is not long |
+ // enough, then, we increase the available space we have for the title. |
+ // Assumes there is no header text to RIGHT of title. |
+ SkScalar max_title_width = std::min(2 * segment_width, |
+ 2 * (segment_width - date_width) + |
+ segment_width); |
+ PrintHeaderFooterText(title, paint, canvas, printing::CENTER, |
+ printing::TOP, webkit_scale_factor, page_layout, |
+ max_title_width, font, header_bounds.top()); |
+ |
+ // Print the page numbers at the bottom right corner of page. |
+ PrintHeaderFooterText(page_of_total_pages, paint, canvas, printing::RIGHT, |
+ printing::BOTTOM, webkit_scale_factor, |
+ page_layout, segment_width, font, |
+ footer_bounds.bottom()); |
+ |
+ // Print the URL. |
+ GURL gurl(url); |
+ SkScalar page_width = paint.measureText( |
+ page_of_total_pages.c_str(), |
+ page_of_total_pages.length() * sizeof(char16)); |
+ |
+ // Calculate the available URL width. We increase the available URL width |
+ // if the |page_of_total_pages| string isn't long enough. |
+ // Assumes no footer text being printed in the CENTER. |
+ SkScalar max_url_width = |
+ (page_layout.content_width + page_layout.margin_left + |
+ page_layout.margin_right) * 3 / 4; |
+ max_url_width = std::min(max_url_width, |
+ 2 * (segment_width - page_width) + segment_width); |
+ string16 url_elided = ui::ElideUrl(gurl, font, |
+ ConvertPointsToPixelDouble(max_url_width), |
+ std::string()); |
+ PrintHeaderFooterText(url_elided, paint, canvas, printing::LEFT, |
+ printing::BOTTOM, webkit_scale_factor, |
+ page_layout, max_url_width, font, |
+ footer_bounds.bottom()); |
+ |
+ // Restore the drawing area to draw in the content area. |
+ static_cast<skia::VectorPlatformDeviceSkia*>(device)->setDrawingArea( |
+ SkPDFDevice::kContent_DrawingArea); |
+} |
+#endif // USE_SKIA |
+ |
PrepareFrameAndViewForPrint::PrepareFrameAndViewForPrint( |
const PrintMsg_Print_Params& print_params, |
WebFrame* frame, |
@@ -726,6 +943,23 @@ bool PrintWebViewHelper::UpdatePrintSettings( |
return false; |
print_pages_params_.reset(new PrintMsg_PrintPages_Params(settings)); |
+ // Getting Header and Footer settings. |
+ bool display_header_footer; |
+ if (!job_settings.GetBoolean(printing::kSettingHeaderFooter, |
+ &display_header_footer)) { |
+ NOTREACHED(); |
+ } |
+ print_pages_params_->params.display_header_footer = display_header_footer; |
+ std::string url; |
+ if (!job_settings.GetString(printing::kSettingHeaderFooterURL, &url)) |
kmadhusu
2011/07/26 20:27:50
Can you merge the if conditions @line 948, 954 and
Aayush Kumar
2011/07/28 17:28:41
Done.
|
+ NOTREACHED(); |
+ header_footer_info_.reset(new DictionaryValue()); |
+ header_footer_info_->SetString(printing::kSettingHeaderFooterURL, url); |
+ string16 title; |
+ if (!job_settings.GetString(printing::kSettingHeaderFooterTitle, &title)) |
+ NOTREACHED(); |
+ header_footer_info_->SetString(printing::kSettingHeaderFooterTitle, title); |
+ |
Send(new PrintHostMsg_DidGetDocumentCookie(routing_id(), |
settings.params.document_cookie)); |
return true; |