Rename PPB_Font to PPB_BrowserFont_Trusted.

ppapi/cpp/trusted/browser_font_trusted.cc

+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ppapi/cpp/trusted/browser_font_trusted.h"
+
+#include <algorithm>
+
+#include "ppapi/c/dev/ppb_font_dev.h"
+#include "ppapi/cpp/image_data.h"
+#include "ppapi/cpp/instance.h"
+#include "ppapi/cpp/point.h"
+#include "ppapi/cpp/rect.h"
+#include "ppapi/cpp/module_impl.h"
+
+namespace pp {
+
+namespace {
+
+template <> const char* interface_name<PPB_BrowserFont_Trusted>() {
+  return PPB_BROWSERFONT_TRUSTED_INTERFACE;
+}
+template <> const char* interface_name<PPB_Font_Dev>() {
+  return PPB_FONT_DEV_INTERFACE;
+}
+
+// This class provides backwards compat for PPB_Font, which is binary
+// compatible with the BrowserFont interface.
+// TODO(brettw) remove PPB_Font altogether when Flash is updated.
+const PP_FontDescription_Dev* BrowserFontDescToFontDesc(
+    const PP_BrowserFont_Trusted_Description* desc) {
+  return reinterpret_cast<const PP_FontDescription_Dev*>(desc);
+}
+PP_FontDescription_Dev* BrowserFontDescToFontDesc(
+    PP_BrowserFont_Trusted_Description* desc) {
+  return reinterpret_cast<PP_FontDescription_Dev*>(desc);
+}
+PP_FontMetrics_Dev* BrowserFontMetricsToFontMetrics(
+    PP_BrowserFont_Trusted_Metrics* metrics) {
+  return reinterpret_cast<PP_FontMetrics_Dev*>(metrics);
+}
+const PP_TextRun_Dev* BrowserFontTextRunToFontTextRun(
+    const PP_BrowserFont_Trusted_TextRun* run) {
+  return reinterpret_cast<const PP_TextRun_Dev*>(run);
+}
+
+}  // namespace
+
+// BrowserFontDescription ------------------------------------------------------
+
+BrowserFontDescription::BrowserFontDescription() {
+  pp_font_description_.face = face_.pp_var();
+  set_family(PP_BROWSERFONT_TRUSTED_FAMILY_DEFAULT);
+  set_size(0);
+  set_weight(PP_BROWSERFONT_TRUSTED_WEIGHT_NORMAL);
+  set_italic(false);
+  set_small_caps(false);
+  set_letter_spacing(0);
+  set_word_spacing(0);
+}
+
+BrowserFontDescription::BrowserFontDescription(
+    const BrowserFontDescription& other) {
+  set_face(other.face());
+  set_family(other.family());
+  set_size(other.size());
+  set_weight(other.weight());
+  set_italic(other.italic());
+  set_small_caps(other.small_caps());
+  set_letter_spacing(other.letter_spacing());
+  set_word_spacing(other.word_spacing());
+}
+
+BrowserFontDescription::~BrowserFontDescription() {
+}
+
+BrowserFontDescription& BrowserFontDescription::operator=(
+    const BrowserFontDescription& other) {
+  pp_font_description_ = other.pp_font_description_;
+
+  // Be careful about the refcount of the string, the copy that operator= made
+  // above didn't copy a ref.
+  pp_font_description_.face = PP_MakeUndefined();
+  set_face(other.face());
+
+  return *this;
+}
+
+// BrowserFontTextRun ----------------------------------------------------------
+
+BrowserFontTextRun::BrowserFontTextRun() {
+  pp_text_run_.text = text_.pp_var();
+  pp_text_run_.rtl = PP_FALSE;
+  pp_text_run_.override_direction = PP_FALSE;
+}
+
+BrowserFontTextRun::BrowserFontTextRun(const std::string& text,
+                                       bool rtl,
+                                       bool override_direction)
+    : text_(text) {
+  pp_text_run_.text = text_.pp_var();
+  pp_text_run_.rtl = PP_FromBool(rtl);
+  pp_text_run_.override_direction = PP_FromBool(override_direction);
+}
+
+BrowserFontTextRun::BrowserFontTextRun(const BrowserFontTextRun& other)
+    : text_(other.text_) {
+  pp_text_run_.text = text_.pp_var();
+  pp_text_run_.rtl = other.pp_text_run_.rtl;
+  pp_text_run_.override_direction = other.pp_text_run_.override_direction;
+}
+
+BrowserFontTextRun::~BrowserFontTextRun() {
+}
+
+BrowserFontTextRun& BrowserFontTextRun::operator=(
+    const BrowserFontTextRun& other) {
+  pp_text_run_ = other.pp_text_run_;
+  text_ = other.text_;
+  pp_text_run_.text = text_.pp_var();
+  return *this;
+}
+
+// BrowserFont_Trusted ---------------------------------------------------------
+
+BrowserFont_Trusted::BrowserFont_Trusted() : Resource() {
+}
+
+BrowserFont_Trusted::BrowserFont_Trusted(PP_Resource resource)
+    : Resource(resource) {
+}
+
+BrowserFont_Trusted::BrowserFont_Trusted(
+    Instance* instance,
+    const BrowserFontDescription& description) {
+  if (has_interface<PPB_BrowserFont_Trusted>()) {
+    PassRefFromConstructor(get_interface<PPB_BrowserFont_Trusted>()->Create(
+        instance->pp_instance(),
+        &description.pp_font_description()));
+  } else if (!has_interface<PPB_Font_Dev>()) {
+    PassRefFromConstructor(get_interface<PPB_Font_Dev>()->Create(
+        instance->pp_instance(),
+        BrowserFontDescToFontDesc(&description.pp_font_description())));
+  }
+}
+
+BrowserFont_Trusted::BrowserFont_Trusted(const BrowserFont_Trusted& other)
+    : Resource(other) {
+}
+
+BrowserFont_Trusted& BrowserFont_Trusted::operator=(
+    const BrowserFont_Trusted& other) {
+  Resource::operator=(other);
+  return *this;
+}
+
+// static
+Var BrowserFont_Trusted::GetFontFamilies(Instance* instance) {
+  if (!has_interface<PPB_Font_Dev>())
+    return Var();
+  return Var(Var::PassRef(),
+             get_interface<PPB_Font_Dev>()->GetFontFamilies(
+                 instance->pp_instance()));
+}
+
+bool BrowserFont_Trusted::Describe(
+    BrowserFontDescription* description,
+    PP_BrowserFont_Trusted_Metrics* metrics) const {
+  // Be careful with ownership of the |face| string. It will come back with
+  // a ref of 1, which we want to assign to the |face_| member of the C++ class.
+  if (has_interface<PPB_BrowserFont_Trusted>()) {
+    if (!get_interface<PPB_BrowserFont_Trusted>()->Describe(
+        pp_resource(), &description->pp_font_description_, metrics))
+      return false;
+  } else if (!has_interface<PPB_Font_Dev>()) {
+    if (!get_interface<PPB_Font_Dev>()->Describe(
+        pp_resource(),
+        BrowserFontDescToFontDesc(&description->pp_font_description_),
+        BrowserFontMetricsToFontMetrics(metrics)))
+      return false;
+  }
+  description->face_ = Var(Var::PassRef(),
+                           description->pp_font_description_.face);
+  return true;
+}
+
+bool BrowserFont_Trusted::DrawTextAt(ImageData* dest,
+                                     const BrowserFontTextRun& text,
+                                     const Point& position,
+                                     uint32_t color,
+                                     const Rect& clip,
+                                     bool image_data_is_opaque) const {
+  if (has_interface<PPB_BrowserFont_Trusted>()) {
+    return PP_ToBool(get_interface<PPB_BrowserFont_Trusted>()->DrawTextAt(
+        pp_resource(),
+        dest->pp_resource(),
+        &text.pp_text_run(),
+        &position.pp_point(),
+        color,
+        &clip.pp_rect(),
+        PP_FromBool(image_data_is_opaque)));
+  } else if (!has_interface<PPB_Font_Dev>()) {
+    return PP_ToBool(get_interface<PPB_Font_Dev>()->DrawTextAt(
+        pp_resource(),
+        dest->pp_resource(),
+        BrowserFontTextRunToFontTextRun(&text.pp_text_run()),
+        &position.pp_point(),
+        color,
+        &clip.pp_rect(),
+        PP_FromBool(image_data_is_opaque)));
+  }
+  return false;
+}
+
+int32_t BrowserFont_Trusted::MeasureText(const BrowserFontTextRun& text) const {
+  if (has_interface<PPB_BrowserFont_Trusted>()) {
+    return get_interface<PPB_BrowserFont_Trusted>()->MeasureText(
+        pp_resource(),
+        &text.pp_text_run());
+  } else if (!has_interface<PPB_Font_Dev>()) {
+    return get_interface<PPB_Font_Dev>()->MeasureText(
+        pp_resource(),
+        BrowserFontTextRunToFontTextRun(&text.pp_text_run()));
+  }
+  return -1;
+}
+
+uint32_t BrowserFont_Trusted::CharacterOffsetForPixel(
+    const BrowserFontTextRun& text,
+    int32_t pixel_position) const {
+  if (has_interface<PPB_BrowserFont_Trusted>()) {
+    return get_interface<PPB_BrowserFont_Trusted>()->CharacterOffsetForPixel(
+        pp_resource(),
+        &text.pp_text_run(),
+        pixel_position);
+  } else if (!has_interface<PPB_Font_Dev>()) {
+    return get_interface<PPB_Font_Dev>()->CharacterOffsetForPixel(
+        pp_resource(),
+        BrowserFontTextRunToFontTextRun(&text.pp_text_run()),
+        pixel_position);
+  }
+  return 0;
+}
+
+int32_t BrowserFont_Trusted::PixelOffsetForCharacter(
+    const BrowserFontTextRun& text,
+    uint32_t char_offset) const {
+  if (has_interface<PPB_BrowserFont_Trusted>()) {
+    return get_interface<PPB_BrowserFont_Trusted>()->PixelOffsetForCharacter(
+        pp_resource(),
+        &text.pp_text_run(),
+        char_offset);
+  } else if (!has_interface<PPB_Font_Dev>()) {
+    return get_interface<PPB_Font_Dev>()->PixelOffsetForCharacter(
+        pp_resource(),
+        BrowserFontTextRunToFontTextRun(&text.pp_text_run()),
+        char_offset);
+  }
+  return 0;
+}
+
+bool BrowserFont_Trusted::DrawSimpleText(
+    ImageData* dest,
+    const std::string& text,
+    const Point& position,
+    uint32_t color,
+    bool image_data_is_opaque) const {
+  return DrawTextAt(dest, BrowserFontTextRun(text), position, color,
+                    Rect(dest->size()), image_data_is_opaque);
+}
+
+int32_t BrowserFont_Trusted::MeasureSimpleText(const std::string& text) const {
+  return MeasureText(BrowserFontTextRun(text));
+}
+
+}  // namespace pp