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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "ppapi/cpp/dev/text_input_dev.h"
      6 
      7 #include "ppapi/c/dev/ppp_text_input_dev.h"
      8 #include "ppapi/cpp/instance.h"
      9 #include "ppapi/cpp/instance_handle.h"
     10 #include "ppapi/cpp/module_impl.h"
     11 #include "ppapi/cpp/rect.h"
     12 
     13 namespace pp {
     14 
     15 namespace {
     16 
     17 static const char kPPPTextInputInterface[] = PPP_TEXTINPUT_DEV_INTERFACE;
     18 
     19 void RequestSurroundingText(PP_Instance instance,
     20                             uint32_t desired_number_of_characters) {
     21   void* object = Instance::GetPerInstanceObject(instance,
     22                                                 kPPPTextInputInterface);
     23   if (!object)
     24     return;
     25   static_cast<TextInput_Dev*>(object)->RequestSurroundingText(
     26       desired_number_of_characters);
     27 }
     28 
     29 const PPP_TextInput_Dev ppp_text_input = {
     30   &RequestSurroundingText
     31 };
     32 
     33 template <> const char* interface_name<PPB_TextInput_Dev_0_2>() {
     34   return PPB_TEXTINPUT_DEV_INTERFACE_0_2;
     35 }
     36 
     37 template <> const char* interface_name<PPB_TextInput_Dev_0_1>() {
     38   return PPB_TEXTINPUT_DEV_INTERFACE_0_1;
     39 }
     40 
     41 }  // namespace
     42 
     43 
     44 TextInput_Dev::TextInput_Dev(Instance* instance)
     45     : instance_(instance) {
     46   Module::Get()->AddPluginInterface(kPPPTextInputInterface,
     47                                     &ppp_text_input);
     48   instance->AddPerInstanceObject(kPPPTextInputInterface, this);
     49 }
     50 
     51 TextInput_Dev::~TextInput_Dev() {
     52   Instance::RemovePerInstanceObject(instance_, kPPPTextInputInterface, this);
     53 }
     54 
     55 void TextInput_Dev::RequestSurroundingText(uint32_t) {
     56   // Default implementation. Send a null range.
     57   UpdateSurroundingText(std::string(), 0, 0);
     58 }
     59 
     60 void TextInput_Dev::SetTextInputType(PP_TextInput_Type_Dev type) {
     61   if (has_interface<PPB_TextInput_Dev_0_2>()) {
     62     get_interface<PPB_TextInput_Dev_0_2>()->SetTextInputType(
     63         instance_.pp_instance(), type);
     64   } else if (has_interface<PPB_TextInput_Dev_0_1>()) {
     65     get_interface<PPB_TextInput_Dev_0_1>()->SetTextInputType(
     66         instance_.pp_instance(), type);
     67   }
     68 }
     69 
     70 void TextInput_Dev::UpdateCaretPosition(const Rect& caret,
     71                                         const Rect& bounding_box) {
     72   if (has_interface<PPB_TextInput_Dev_0_2>()) {
     73     get_interface<PPB_TextInput_Dev_0_2>()->UpdateCaretPosition(
     74         instance_.pp_instance(), &caret.pp_rect(), &bounding_box.pp_rect());
     75   } else if (has_interface<PPB_TextInput_Dev_0_1>()) {
     76     get_interface<PPB_TextInput_Dev_0_1>()->UpdateCaretPosition(
     77         instance_.pp_instance(), &caret.pp_rect(), &bounding_box.pp_rect());
     78   }
     79 }
     80 
     81 void TextInput_Dev::CancelCompositionText() {
     82   if (has_interface<PPB_TextInput_Dev_0_2>()) {
     83     get_interface<PPB_TextInput_Dev_0_2>()->CancelCompositionText(
     84         instance_.pp_instance());
     85   } else if (has_interface<PPB_TextInput_Dev_0_1>()) {
     86     get_interface<PPB_TextInput_Dev_0_1>()->CancelCompositionText(
     87         instance_.pp_instance());
     88   }
     89 }
     90 
     91 void TextInput_Dev::SelectionChanged() {
     92   if (has_interface<PPB_TextInput_Dev_0_2>()) {
     93     get_interface<PPB_TextInput_Dev_0_2>()->SelectionChanged(
     94         instance_.pp_instance());
     95   }
     96 }
     97 
     98 void TextInput_Dev::UpdateSurroundingText(const std::string& text,
     99                                           uint32_t caret,
    100                                           uint32_t anchor) {
    101   if (has_interface<PPB_TextInput_Dev_0_2>()) {
    102     get_interface<PPB_TextInput_Dev_0_2>()->UpdateSurroundingText(
    103         instance_.pp_instance(), text.c_str(), caret, anchor);
    104   }
    105 }
    106 
    107 
    108 }  // namespace pp
    109