1 | /**
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2 | * Python.java
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3 | * Copyright (C) 2010 New Zealand Digital Library, http://expeditee.org
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4 | *
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5 | * This program is free software: you can redistribute it and/or modify
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6 | * it under the terms of the GNU General Public License as published by
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7 | * the Free Software Foundation, either version 3 of the License, or
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8 | * (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 | */
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18 |
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19 | package org.expeditee.actions;
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20 |
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21 | import java.util.List;
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22 |
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23 | import javax.script.Invocable;
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24 |
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25 | import org.expeditee.gui.Frame;
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26 | import org.expeditee.gui.MessageBay;
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27 | import org.expeditee.items.Item;
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28 | import org.expeditee.items.Text;
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29 |
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30 | /**
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31 | * Javascript parser.
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32 | * Works differently to the other Javascript class in that it
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33 | * parses a frame as a whole rather than parsing individual text items as separate statements
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34 | *
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35 | * @author jts21
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36 | * @author davidb
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37 | */
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38 | public class Python extends ScriptBase {
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39 |
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40 | protected void init() {
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41 | ERROR_FRAMESET = "PythonErrors";
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42 | scriptEngine = scriptEngineManager.getEngineByMimeType("application/python");
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43 | scriptEngine.put("invocable", (Invocable) scriptEngine);
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44 | }
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45 |
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46 | public static void printPythonFrame(Item item) {
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47 | if(item.getChild() == null) {
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48 | // if the user clicked on the action without an item on their cursor
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49 | if(item.hasAction()) {
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50 | boolean isThis = false;
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51 | for(String s : item.getAction()) {
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52 | if(s.equalsIgnoreCase("printPythonFrame")) {
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53 | isThis = true;
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54 | break;
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55 | }
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56 | }
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57 | if(isThis) {
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58 | System.out.println(new Python(item.getParentOrCurrentFrame(), true));
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59 | return;
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60 | }
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61 | }
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62 | MessageBay.warningMessage("Requires either an item with a link to a frame, or no item (will run the current frame)");
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63 | } else {
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64 | System.out.println(new Python(item.getChild(), true));
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65 | }
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66 | }
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67 |
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68 | public static void runPythonFrame(Item item) throws Exception {
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69 | if(item.getChild() == null) {
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70 | // if the user clicked on the action without an item on their cursor
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71 | if(item.hasAction()) {
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72 | boolean isThis = false;
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73 | for(String s : item.getAction()) {
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74 | if(s.equalsIgnoreCase("runPythonFrame")) {
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75 | isThis = true;
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76 | break;
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77 | }
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78 | }
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79 | if(isThis) {
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80 | Python.runFrameFollow(item.getParentOrCurrentFrame());
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81 | return;
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82 | }
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83 | }
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84 | MessageBay.warningMessage("Requires either an item with a link to a frame, or no item (will run the current frame)");
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85 | } else {
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86 | Python.runFrameFollow(item.getChild());
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87 | }
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88 | }
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89 |
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90 |
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91 | private static synchronized void runFrameFollow(Frame frame) throws Exception {
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92 | Python python = new Python(frame, true);
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93 | python.runFrame(frame,true);
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94 | }
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95 |
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96 | private Python(Frame frame, boolean followLinks) {
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97 | super(frame,followLinks);
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98 | }
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99 |
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100 |
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101 | protected void processItems(List<Item> overlapping_y_ordered_items, boolean followLinks, int depth) {
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102 |
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103 | // Loop through the items looking for code and links to new frames
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104 | for(Item i : overlapping_y_ordered_items) {
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105 | if(followLinks && i.hasLink()) {
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106 | Frame child = i.getChild();
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107 | if(child != null && !seen.contains(child)) {
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108 | this.parseFrame(child, true, depth);
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109 | }
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110 | }
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111 | if(i instanceof Text && !i.isAnnotation()) {
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112 | String text = ((Text)i).getText();
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113 | if (i == org.expeditee.io.flowlayout.XGroupItem.GROUPSEP_START) {
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114 | text = null;
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115 | depth++;
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116 | }
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117 | else if (i == org.expeditee.io.flowlayout.XGroupItem.GROUPSEP_END) {
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118 | text = null;
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119 | depth--;
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120 | }
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121 |
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122 | if (text != null) {
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123 | int lineNumber = 0;
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124 | for(String line : text.trim().split("[\\n\\r]+")) {
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125 | if (depth>0) {
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126 | sb.append(String.format("%1$" + (4*depth) + "s", "")); // indent with 'depth' x 4 spaces
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127 | }
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128 | sb.append(line).append("\n");
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129 | lines.add(new CodeLine((Text)i, lineNumber++, line));
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130 | }
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131 | }
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132 | }
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133 | }
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134 |
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135 |
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136 | }
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137 |
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138 | }
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