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// 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 "chrome/renderer/form_manager.h"
#include "base/logging.h"
#include "base/stl_util-inl.h"
#include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/WebKit/chromium/public/WebNode.h"
#include "third_party/WebKit/WebKit/chromium/public/WebString.h"
#include "third_party/WebKit/WebKit/chromium/public/WebVector.h"
using WebKit::WebFormElement;
using WebKit::WebFrame;
using WebKit::WebInputElement;
using WebKit::WebNode;
using WebKit::WebString;
using WebKit::WebVector;
FormManager::FormManager() {
}
FormManager::~FormManager() {
Reset();
}
void FormManager::ExtractForms(WebFrame* frame) {
// Reset the vector of FormElements for this frame.
ResetFrame(frame);
WebVector<WebFormElement> web_forms;
frame->forms(web_forms);
// Form loop.
for (size_t i = 0; i < web_forms.size(); ++i) {
FormElement* form_elements = new FormElement;
form_elements->form_element = web_forms[i];
// Form elements loop.
WebVector<WebInputElement> input_elements;
form_elements->form_element.getInputElements(input_elements);
for (size_t j = 0; j < input_elements.size(); ++j) {
WebInputElement element = input_elements[j];
form_elements->input_elements[element.nameForAutofill()] = element;
}
form_elements_map_[frame].push_back(form_elements);
}
}
void FormManager::GetForms(std::vector<FormData>* forms,
RequirementsMask requirements) {
// Frame loop.
for (WebFrameFormElementMap::iterator iter = form_elements_map_.begin();
iter != form_elements_map_.end(); ++iter) {
WebFrame* frame = iter->first;
// Form loop.
for (std::vector<FormElement*>::iterator form_iter = iter->second.begin();
form_iter != iter->second.end(); ++form_iter) {
FormElement* form_element = *form_iter;
if (requirements & REQUIRE_AUTOCOMPLETE &&
!form_element->form_element.autoComplete())
continue;
FormData form;
FormElementToFormData(frame, form_element, requirements, &form);
forms->push_back(form);
}
}
}
bool FormManager::FindForm(const WebInputElement& element, FormData* form) {
// Frame loop.
for (WebFrameFormElementMap::iterator iter = form_elements_map_.begin();
iter != form_elements_map_.end(); ++iter) {
WebFrame* frame = iter->first;
// Form loop.
for (std::vector<FormElement*>::iterator form_iter = iter->second.begin();
form_iter != iter->second.end(); ++form_iter) {
FormElement* form_element = *form_iter;
if (form_element->input_elements.find(element.nameForAutofill()) !=
form_element->input_elements.end()) {
FormElementToFormData(frame, form_element, REQUIRE_NONE, form);
return true;
}
}
}
return false;
}
bool FormManager::FillForm(const FormData& form) {
FormElement* form_element = NULL;
// Frame loop.
for (WebFrameFormElementMap::iterator iter = form_elements_map_.begin();
iter != form_elements_map_.end(); ++iter) {
// Form loop.
for (std::vector<FormElement*>::iterator form_iter = iter->second.begin();
form_iter != iter->second.end(); ++form_iter) {
if ((*form_iter)->form_element.name() == form.name) {
form_element = *form_iter;
break;
}
}
}
if (!form_element)
return false;
DCHECK(form_element->input_elements.size() == form.elements.size());
DCHECK(form.elements.size() == form.values.size());
size_t i = 0;
for (FormInputElementMap::iterator iter =
form_element->input_elements.begin();
iter != form_element->input_elements.end(); ++iter, ++i) {
DCHECK(iter->second.nameForAutofill() == form.elements[i]);
iter->second.setValue(form.values[i]);
iter->second.setAutofilled(true);
}
return true;
}
void FormManager::Reset() {
for (WebFrameFormElementMap::iterator iter = form_elements_map_.begin();
iter != form_elements_map_.end(); ++iter) {
STLDeleteElements(&iter->second);
}
form_elements_map_.clear();
}
void FormManager::ResetFrame(WebFrame* frame) {
WebFrameFormElementMap::iterator iter = form_elements_map_.find(frame);
if (iter != form_elements_map_.end()) {
STLDeleteElements(&iter->second);
form_elements_map_.erase(iter);
}
}
void FormManager::FormElementToFormData(WebFrame* frame,
const FormElement* form_element,
RequirementsMask requirements,
FormData* form) {
form->name = form_element->form_element.name();
form->origin = frame->url();
form->action = frame->completeURL(form_element->form_element.action());
// If the completed ULR is not valid, just use the action we get from
// WebKit.
if (!form->action.is_valid())
form->action = GURL(form_element->form_element.action());
// Form elements loop.
for (FormInputElementMap::const_iterator element_iter =
form_element->input_elements.begin();
element_iter != form_element->input_elements.end(); ++element_iter) {
const WebInputElement& input_element = element_iter->second;
if (requirements & REQUIRE_AUTOCOMPLETE &&
!input_element.autoComplete())
continue;
if (requirements & REQUIRE_ELEMENTS_ENABLED &&
!input_element.isEnabledFormControl())
continue;
form->elements.push_back(input_element.nameForAutofill());
form->values.push_back(input_element.value());
// TODO(jhawkins): It's possible for a form to have more than one submit
// input element. The FormData structure probably doesn't need to keep
// track of the name of any submit button.
if (input_element.inputType() == WebInputElement::Submit)
form->submit = input_element.nameForAutofill();
}
}
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